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 ":".
The
company
's
services
include
aircraft
leasing
,
commercial
charters
and
military
charters
.
The:O
company:O
's:O
services:O
include:O
aircraft:O
leasing:O
,:O
commercial:O
charters:O
and:O
military:O
charters:O
.:O