With no explanation, label each line with "O", "building-airport", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-hospital" or "building-hotel" preceded by ":".
The
train
to
Stockholm-Arlanda
Airport
takes
only
17
minutes
,
rendering
the
city
easily
accessible
by
air
.
The:O
train:O
to:O
Stockholm-Arlanda:building-airport
Airport:building-airport
takes:O
only:O
17:O
minutes:O
,:O
rendering:O
the:O
city:O
easily:O
accessible:O
by:O
air:O
.:O