With no explanation, label each line with "O", "person-actor", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
2012
,
Pak
retired
from
acting
.
In:O
2012:O
,:O
Pak:person-actor
retired:O
from:O
acting:O
.:O