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
occupies
the
oldest
public
library
building
in
the
city
.
It:O
occupies:O
the:O
oldest:O
public:O
library:O
building:O
in:O
the:O
city:O
.:O