With no explanation, label each line with "art-film", "O", "organization-company", "art-broadcastprogram", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Film
Roman
was
acquired
by
IDT
Corporation
,
an
international
telephone
company
expanding
into
entertainment
in
2003
.
Film:O
Roman:art-film
was:O
acquired:O
by:O
IDT:organization-company
Corporation:organization-company
,:O
an:O
international:O
telephone:O
company:O
expanding:O
into:O
entertainment:O
in:O
2003:O
.:O