With no explanation, label each line with "O", "building-theater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Beginning
in
1949
,
it
operated
its
own
theatre
,
first
at
the
Lenox
Hill
Playhouse
and
later
at
other
auditoriums
.
Beginning:O
in:O
1949:O
,:O
it:O
operated:O
its:O
own:O
theatre:O
,:O
first:O
at:O
the:O
Lenox:building-theater
Hill:building-theater
Playhouse:building-theater
and:O
later:O
at:O
other:O
auditoriums:O
.:O