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
dam
provides
flood
control
and
winter
power
generation
by
raising
the
normal
water
level
by
two
meters
.
The:O
dam:O
provides:O
flood:O
control:O
and:O
winter:O
power:O
generation:O
by:O
raising:O
the:O
normal:O
water:O
level:O
by:O
two:O
meters:O
.:O