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 ":".
This
in
turn
caused
continued
withdrawals
from
the
reservoir
.
This:O
in:O
turn:O
caused:O
continued:O
withdrawals:O
from:O
the:O
reservoir:O
.:O