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 ":".
This
temporary
relocation
lasted
until
February
28
,
2014
,
when
Amtrak
's
ticketing
and
passenger
services
returned
to
the
station
.
This:O
temporary:O
relocation:O
lasted:O
until:O
February:O
28:O
,:O
2014:O
,:O
when:O
Amtrak:O
's:O
ticketing:O
and:O
passenger:O
services:O
returned:O
to:O
the:O
station:O
.:O