With no explanation, label each line with "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
had
been
named
for
the
director
's
allowing
audiences
to
barter
produce
for
admission
during
the
cash-lean
years
of
the
Great
Depression
.
It:O
had:O
been:O
named:O
for:O
the:O
director:O
's:O
allowing:O
audiences:O
to:O
barter:O
produce:O
for:O
admission:O
during:O
the:O
cash-lean:O
years:O
of:O
the:O
Great:event-other
Depression:event-other
.:O