With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
film
was
released
on
4
February
2011
to
positive
critical
acclaim
and
was
moderately
successful
at
the
box
office
.
The:O
film:O
was:O
released:O
on:O
4:O
February:O
2011:O
to:O
positive:O
critical:O
acclaim:O
and:O
was:O
moderately:O
successful:O
at:O
the:O
box:O
office:O
.:O