With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
post
office
called
Burgoon
has
been
in
operation
since
1873
.
A:O
post:O
office:O
called:O
Burgoon:building-other
has:O
been:O
in:O
operation:O
since:O
1873:O
.:O