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 ":".
In
Ohio
,
it
was
the
deadliest
tornado
since
the
Xenia
F5
during
the
Super
Outbreak
of
April
3
,
1974
.
In:O
Ohio:O
,:O
it:O
was:O
the:O
deadliest:O
tornado:O
since:O
the:O
Xenia:event-disaster
F5:event-disaster
during:O
the:O
Super:event-disaster
Outbreak:event-disaster
of:O
April:O
3:O
,:O
1974:O
.:O