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 ":".
After
the
purchase
,
extensive
renovations
were
done
and
the
interior
of
the
building
was
redesigned
.
After:O
the:O
purchase:O
,:O
extensive:O
renovations:O
were:O
done:O
and:O
the:O
interior:O
of:O
the:O
building:O
was:O
redesigned:O
.:O