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 ":".
It
was
incorporated
in
the
city
in
1841
.
It:O
was:O
incorporated:O
in:O
the:O
city:O
in:O
1841:O
.:O