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 ":".
Reduction
of
equipment
and
personnel
began
almost
immediately
.
Reduction:O
of:O
equipment:O
and:O
personnel:O
began:O
almost:O
immediately:O
.:O