With no explanation, label each line with "O", "building-hotel", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Demolitions
for
the
Dupont
Plaza
Hotel
was
started
in
April
2004
and
completed
in
January
2005
.
Demolitions:O
for:O
the:O
Dupont:building-hotel
Plaza:building-hotel
Hotel:building-hotel
was:O
started:O
in:O
April:O
2004:O
and:O
completed:O
in:O
January:O
2005:O
.:O