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 ":".
They
did
over
20
takes
,
then
they
spliced
the
best
bits
together
.
They:O
did:O
over:O
20:O
takes:O
,:O
then:O
they:O
spliced:O
the:O
best:O
bits:O
together:O
.:O