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
owned
a
small
transport
business
,
and
the
family
was
comparatively
well
off
.
His:O
father:O
owned:O
a:O
small:O
transport:O
business:O
,:O
and:O
the:O
family:O
was:O
comparatively:O
well:O
off:O
.:O