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 ":".
A
practicing
Christian
,
he
chose
not
to
advertise
on
Sundays
.
A:O
practicing:O
Christian:O
,:O
he:O
chose:O
not:O
to:O
advertise:O
on:O
Sundays:O
.:O