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 ":".
From
its
opening
in
1934
to
its
closure
in
2009
,
the
restaurant
changed
ownership
several
times
.
From:O
its:O
opening:O
in:O
1934:O
to:O
its:O
closure:O
in:O
2009:O
,:O
the:O
restaurant:O
changed:O
ownership:O
several:O
times:O
.:O