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
stone
was
taken
away
by
road
vehicles
.
The:O
stone:O
was:O
taken:O
away:O
by:O
road:O
vehicles:O
.:O