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
cathedral
was
built
in
1954
.
The:O
cathedral:O
was:O
built:O
in:O
1954:O
.:O