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 ":".
He
was
a
regular
performer
at
the
PMP
up
through
1950
.
He:O
was:O
a:O
regular:O
performer:O
at:O
the:O
PMP:building-theater
up:O
through:O
1950:O
.:O