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 ":".
His
father
tap
danced
and
his
mother
played
piano
,
a
husband-wife
team
going
from
city
to
city
with
their
troupe
to
earn
a
living
.
His:O
father:O
tap:O
danced:O
and:O
his:O
mother:O
played:O
piano:O
,:O
a:O
husband-wife:O
team:O
going:O
from:O
city:O
to:O
city:O
with:O
their:O
troupe:O
to:O
earn:O
a:O
living:O
.:O