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 ":".
This
was
his
first
venture
into
the
music
industry
.
This:O
was:O
his:O
first:O
venture:O
into:O
the:O
music:O
industry:O
.:O