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 ":".
After
leaving
the
film
business
,
B.A
.
After:O
leaving:O
the:O
film:O
business:O
,:O
B.A:O
.:O