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 ":".
He
had
the
original
building
renovated
,
and
by
the
late
1920s
started
construction
on
a
new
23-story
structure
for
surgery
.
He:O
had:O
the:O
original:O
building:O
renovated:O
,:O
and:O
by:O
the:O
late:O
1920s:O
started:O
construction:O
on:O
a:O
new:O
23-story:O
structure:O
for:O
surgery:O
.:O