With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Up
to
that
time
,
a
vast
majority
of
Irvine
's
photographs
had
never
been
published
.
Up:O
to:O
that:O
time:O
,:O
a:O
vast:O
majority:O
of:O
Irvine:person-other
's:O
photographs:O
had:O
never:O
been:O
published:O
.:O