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
highway
was
built
by
1939
.
The:O
highway:O
was:O
built:O
by:O
1939:O
.:O