With no explanation, label each line with "O", "event-disaster", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
``
Great
Flood
``
of
May
31
,
1889
,
occurred
after
the
South
Fork
Dam
collapsed
upstream
from
the
city
during
heavy
rains
.
The:O
``:O
Great:event-disaster
Flood:event-disaster
``:O
of:O
May:O
31:O
,:O
1889:O
,:O
occurred:O
after:O
the:O
South:location-other
Fork:location-other
Dam:location-other
collapsed:O
upstream:O
from:O
the:O
city:O
during:O
heavy:O
rains:O
.:O