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
construction
material
was
pine
wood
.
The:O
construction:O
material:O
was:O
pine:O
wood:O
.:O