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
dzong
was
burnt
down
by
a
fire
in
June
2012
.
The:O
dzong:O
was:O
burnt:O
down:O
by:O
a:O
fire:O
in:O
June:O
2012:O
.:O