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
reservoirs
provide
flood
control
and
hydroelectric
power
.
The:O
reservoirs:O
provide:O
flood:O
control:O
and:O
hydroelectric:O
power:O
.:O