With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
February
2012
,
a
whodunnit
was
formed
when
Stu
was
found
dead
.
In:O
February:O
2012:O
,:O
a:O
whodunnit:O
was:O
formed:O
when:O
Stu:person-other
was:O
found:O
dead:O
.:O