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
library
's
collection
totals
more
than
2
million
items
,
including
books
,
reference
materials
,
movies
,
music
,
and
photographs
.
The:O
library:O
's:O
collection:O
totals:O
more:O
than:O
2:O
million:O
items:O
,:O
including:O
books:O
,:O
reference:O
materials:O
,:O
movies:O
,:O
music:O
,:O
and:O
photographs:O
.:O