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
episode
four
,
she
went
behind
Avid
's
back
with
Ralph
,
but
was
caught
.
In:O
episode:O
four:O
,:O
she:O
went:O
behind:O
Avid:person-other
's:O
back:O
with:O
Ralph:person-other
,:O
but:O
was:O
caught:O
.:O