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 ":".
The
architect
for
the
building
was
selected
by
a
design
competition
held
by
the
city
in
July
1991
.
The:O
architect:O
for:O
the:O
building:O
was:O
selected:O
by:O
a:O
design:O
competition:O
held:O
by:O
the:O
city:O
in:O
July:O
1991:O
.:O