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 ":".
This
was
shown
in
his
work
which
resulted
in
the
loss
of
many
old
buildings
and
historic
areas
of
the
city
.
This:O
was:O
shown:O
in:O
his:O
work:O
which:O
resulted:O
in:O
the:O
loss:O
of:O
many:O
old:O
buildings:O
and:O
historic:O
areas:O
of:O
the:O
city:O
.:O