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
question
then
is
where
should
the
water
from
the
pit
be
discharged
?
The:O
question:O
then:O
is:O
where:O
should:O
the:O
water:O
from:O
the:O
pit:O
be:O
discharged:O
?:O