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 ":".
Peak
flows
could
now
be
more
dramatically
reduced
,
and
low
flows
bolstered
by
controlled
releases
from
storage
.
Peak:O
flows:O
could:O
now:O
be:O
more:O
dramatically:O
reduced:O
,:O
and:O
low:O
flows:O
bolstered:O
by:O
controlled:O
releases:O
from:O
storage:O
.:O