With no explanation, label each line with "O", "event-disaster", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Floodwaters
from
the
stream
during
Hurricane
Diane
in
1955
damaged
low-lying
land
in
the
borough
.
Floodwaters:O
from:O
the:O
stream:O
during:O
Hurricane:event-disaster
Diane:event-disaster
in:O
1955:O
damaged:O
low-lying:O
land:O
in:O
the:O
borough:O
.:O