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Event Detection
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Demonstration
The LEAF Lab
Data
Events
Cause_change_of_strength
Data: MAVEN
Event Type:
Cause_change_of_strength
Trigger words (Most frequent):
weakened (301)
intensified (161)
strengthened (145)
weakening (71)
strengthening (51)
reinforced (42)
weaken (37)
intensify (32)
strength (31)
intensifying (31)
Negative Trigger
After
tracking
Change
northeast
,
the
system
strengthened
Cause_change_of_strength
into
a
cyclonic
storm
Catastrophe
on
November
11
,
as
maximum
sustained
winds
exceeded
Cause_change_of_position_on_a_scale
65
km/h
(
40
mph
)
.
Diane
initially
moved
Motion
west-northwestward
with
little
change
Change
in
its
intensity
,
but
began
Process_start
to
strengthen
Cause_change_of_strength
rapidly
after
turning
Becoming
to
the
north-northeast
.
After
the
storm
Catastrophe
weakened
Cause_change_of_strength
in
Virginia
,
it
maintained
Containing
an
area
of
moisture
that
resulted in
Causation
heavy
rainfall
after
interacting
with
the
Blue
Ridge
Mountains
,
a
process
known
as
orographic
lift
Body_movement
.
The
protests
strengthened
Cause_change_of_strength
after
one
of
the
village
representatives
,
Xue
Jinbo
,
died
Death
in
police
custody
in
suspicious
circumstances
.
While
approaching
Arriving
Central
America
,
the
storm
Catastrophe
intensified
Cause_change_of_strength
and
peaked
as
a
115
mph
(
185
km/h
)
Category
3
hurricane
on
September
2
.
The
storm
Catastrophe
quickly
strengthened
Cause_change_of_strength
into
a
typhoon
the
next
day
,
reaching
Arriving
its
peak
intensity
with
winds
of
130
km/h
(
80
mph
)
early
on
August
6
.
An
earthquake
Catastrophe
at
8:32:17
a.m.
PDT
(
UTC−7
)
on
Sunday
,
May
18
,
1980
,
caused
Causation
the
entire
weakened
Cause_change_of_strength
north
face
to
slide
Motion
away
,
creating
Creating
the
largest
landslide
ever
recorded
.
However
,
on
the
following
Self_motion
day
,
wind
shear
increased
Cause_change_of_position_on_a_scale
again
,
while
sea
surface
temperatures
decreased
Cause_change_of_position_on_a_scale
,
causing
Causation
Jose
to
weaken
Cause_change_of_strength
and
quickly
transition
into
an
extratropical
cyclone
.
The
Italians
,
who
already
considered
the
mountain
lost
Earnings_and_losses
,
began
Process_start
a
counter-bombardment
of
the
fortified
Cause_change_of_strength
positions
,
causing
Causation
many
victims
among
both
the
defending
Defending
Italian
and
the
Austro-Hungarian
troops
.
While
Allied
divisions
were
being
diverted
Removing
from
North
Africa
,
the
Italians
reinforced
Cause_change_of_strength
their
positions
and
were
supported
Supporting
by
the
arrival
Arriving
of
the
German
``
Afrika
Korps
''
under
``
Generalleutnant
''
Erwin
Rommel
.
over
the
course
of
season
two
and
three
,
more
information
about
the
dominion
is
introduced
Creating
,
until
the
conflict
Hostile_encounter
escalated
Cause_change_of_strength
in
season
four
,
particularly
in
the
episodes
``
and
``
.
Once
this
shear
lightened
on
June
24
,
the
storm
rapidly
intensified
Cause_change_of_strength
to
attain
its
peak
strength
with
winds
of
160
mph
(
260
km/h
)
and
an
estimated
barometric
pressure
of
921
mbar
(
hPa
;
27.2
inHg
)
.
Due
to
its
close
Body_movement
proximity
to
land
,
the
system
failed
to
intensify
Cause_change_of_strength
before
crossing
Motion_directional
the
southern
Yucatán
Peninsula
.
The
following
day
,
Manuel
curved
Motion_directional
westward
and
strengthened
Cause_change_of_strength
to
a
point
just
shy
of
hurricane
intensity
before
making
Manufacturing
its
first
landfall
Self_motion
at
that
intensity
on
September
15
.
After
wreaking
havoc
on
Hispaniola
,
Jeanne
struggled
to
reorganize
Cause_to_amalgamate
,
eventually
strengthening
Cause_change_of_strength
and
performing
Action
a
complete
loop
over
the
open
Atlantic
.
The
storm
slowly
strengthened
Cause_change_of_strength
,
and
at
1800
UTC
on
June
25
,
attained
Getting
its
peak
intensity
with
maximum
sustained
winds
of
65
mph
(
100
km/h
)
.
Its
strength
Cause_change_of_strength
was
well
predicted
Statement
by
forecasters
in
the
United
Kingdom
,
and
warnings
Warning
were
issued
Statement
before
the
low
initially
developed
Coming_to_be
.
Further
weakening
Cause_change_of_strength
occurred
Presence
several
hours
after
re-emerging
Process_start
into
the
Atlantic
,
becoming
Becoming
downgraded
Cause_change_of_position_on_a_scale
to
a
Category
2
hurricane
Catastrophe
.
The
cyclone
Catastrophe
weakened
Cause_change_of_strength
upon
moving
Self_motion
inland
and
dissipated
Change
two
days
later
.
Francelia
weakened
Cause_change_of_strength
slightly
before
making
landfall
near
Punta
Gorda
,
Belize
(
then
British
Honduras
)
late
on
September
3
.
The
system
was
first
noted
Know
as
an
area
of
thunderstorms
east
of
the
Lesser
Antilles
which
moved
Motion
just
north
of
the
Greater
Antilles
,
quickly
intensifying
Cause_change_of_strength
into
a
hurricane
Catastrophe
on
September
22
.
Initially
forecast
to
stay
Temporary_stay
offshore
,
the
depression
headed
Self_motion
northward
and
strengthened
Cause_change_of_strength
into
a
tropical
storm
Catastrophe
that
same
day
.
Two
days
later
,
it
strengthened
Cause_change_of_strength
into
a
typhoon
and
developed
Coming_to_be
an
eye
.
Moving
Motion
westward
as
the
result
of
a
strong
subtropical
ridge
to
its
south
,
the
storm
Catastrophe
quickly
intensified
Cause_change_of_strength
,
and
reached
Arriving
Category
2
cyclone
intensity
on
March
25
before
entering
Arriving
the
Southwest
Indian
cyclone
basin
.
The
depression
strengthened
Cause_change_of_strength
into
a
tropical
storm
early
on
November
6
,
then
a
hurricane
later
that
day
.
It
moved
Motion
northwestward
and
strengthened
Cause_change_of_strength
into
a
tropical
storm
Catastrophe
on
August
25
,
after
becoming
Becoming
nearly
stationary
southeast
of
Bermuda
.
During
November
18
,
due
to
cooler
waters
and
increased
Cause_change_of_position_on_a_scale
wind
shear
,
Tia
started
Process_start
to
weaken
Cause_change_of_strength
as
it
moved
Motion
southwards
under
the
influence
of
a
strengthening
upper-level
northerly
wind
flow
.
Once
in
the
Gulf
of
Thailand
it
strengthened
Cause_change_of_strength
further
to
minimal
typhoon
status
,
but
weakened
Cause_change_of_strength
to
tropical
storm
Catastrophe
strength
before
crossing
Motion_directional
the
Malay
Peninsula
into
the
Bay
of
Bengal
,
the
first
storm
Catastrophe
to
do
so
in
five
years
.
While
crossing
Motion_directional
the
island
and
emerging
Coming_to_be
into
the
Atlantic
,
the
storm
weakened
Cause_change_of_strength
slightly
,
falling
to
Category
4
intensity
.
Further
strengthening
Cause_change_of_strength
occurred
Presence
over
the
subsequent
days
,
and
Doreen
attained
Arriving
its
peak
as
a
minimal
hurricane
Catastrophe
early
on
August
15
.
Later
that
day
,
Carla
weakened
Cause_change_of_strength
slightly
,
but
was
still
a
large
and
intense
hurricane
Catastrophe
when
the
storm
made
Manufacturing
landfall
near
Port
O'Connor
,
Texas
.
These
men
,
who
claimed
Statement
to
be
pro-Russian
fighters
under
the
banner
of
the
Donetsk
People
's
Republic
,
subsequently
gained
Getting
control
Control
of
the
rest
of
Sloviansk
and
began
Process_start
to
fortify
Cause_change_of_strength
it
.
The
system
weakened
Cause_change_of_strength
slightly
the
next
day
before
making
landfall
Self_motion
in
Hainan
Island
.
Subsequently
,
it
weakened
Cause_change_of_strength
before
striking
northern
Cuba
on
September
1
with
winds
of
.
Within
hours
of
moving
Motion
onshore
,
the
system
had
substantially
weakened
Cause_change_of_strength
,
and
by
February
5
,
Geralda
had
degenerated
Change
into
a
land
depression
,
and
it
became
Becoming
extratropical
three
days
later
.
In
Texas
,
flooding
Catastrophe
was
exacerbated
Cause_change_of_strength
by
record
rainfall
in
some
areas
in
May
.
Once
over
the
warm
waters
of
the
sea
,
the
system
quickly
intensified
Cause_change_of_strength
,
attaining
Achieve
its
peak
10-minute
winds
of
110
km/h
(
70
mph
)
and
1-minute
winds
of
140
km/h
(
85
mph
)
.
Weakening
Cause_change_of_strength
as
it
turned
Motion
to
the
northeast
,
the
hurricane
Catastrophe
made
landfall
near
San
Blas
,
Nayarit
as
a
Category
4
hurricane
Catastrophe
,
with
sustained
winds
of
140
mph
(
220
km/h
)
,
before
dissipating
Dispersal
on
October
26
over
the
Sierra
Madre
Occidental
mountains
.
Hurricane
Catastrophe
Eugene
weakened
Cause_change_of_strength
back
to
a
Category
1
hurricane
Catastrophe
;
subsequently
,
the
hurricane
Catastrophe
made
Manufacturing
landfall
near
Manzanillo
.
sandy
developed
Coming_to_be
from
a
tropical
wave
Motion
in
the
western
caribbean
sea
on
october
22
,
quickly
strengthened
Cause_change_of_strength
,
and
was
upgraded
Cause_to_make_progress
to
tropical
storm
sandy
six
hours
later
.
The
event
led to
Causation
security
and
political
repercussions
in
Russia
;
most
notably
,
it
contributed
Causation
to
a
series
of
federal
government
reforms
Reforming_a_system
consolidating
power
in
the
Kremlin
and
strengthening
Cause_change_of_strength
of
the
powers
of
the
President
of
Russia
.
at
first
,
the
storm
moved
Motion
little
and
gradually
strengthened
Cause_change_of_strength
in
response
Response
to
favorable
upper-level
conditions
,
reaching
Arriving
peak
sustained
winds
of
70
mph
(
110
km/h
)
.
Amorium
was
strongly
fortified
Cause_change_of_strength
and
garrisoned
Defending
,
but
a
traitor
revealed
Reveal_secret
a
weak
spot
in
the
wall
,
where
the
Abbasids
concentrated
their
attack
Attack
,
effecting
a
breach
.
It
moved
Motion
swiftly
northward
,
and
it
intensified
Cause_change_of_strength
to
a
tropical
storm
Catastrophe
on
November
9
.
It
slowly
intensified
Cause_change_of_strength
as
it
moved
Motion
northwestward
,
intensifying
Cause_change_of_strength
into
a
hurricane
on
October
4
.
Typhoon
Genevieve
started
Process_start
to
gradually
weaken
Cause_change_of_strength
at
noon
on
August
8
,
and
stronger
vertical
wind
shear
provided
by
a
TUTT
cell
began
Process_start
to
weaken
Cause_change_of_strength
the
system
further
on
August
9
.
Inland
,
the
cyclone
weakened
Cause_change_of_strength
rapidly
but
produced
Creating
prodigious
amounts
of
rain
,
causing
Change
a
dam
to
collapse
Catastrophe
near
Tampa
.
During
the
final
months
of
the
Hawke
Government
,
the
economy
weakened
Cause_change_of_strength
,
and
the
government
's
popularity
was
falling
Cause_change_of_position_on_a_scale
,
which
prompted
many
high
profile
Labor
caucus
members
to
throw
their
support
behind
Keating
.
Hugo
had
weakened
Cause_change_of_strength
into
a
remnant
low
near
Lake
Erie
by
the
next
day
.
Emily
then
curved
Motion_directional
to
the
southwest
but
quickly
resumed
Recovering
its
northwest
trajectory
while
strengthening
Cause_change_of_strength
into
a
hurricane
Catastrophe
.
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