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 ":".
Their
drawings
are
often
site
specific
and
are
often
completed
in
public
spaces
where
the
artists
engage
with
onlookers
and
answer
questions
about
their
unique
technique
.
Their:O
drawings:O
are:O
often:O
site:O
specific:O
and:O
are:O
often:O
completed:O
in:O
public:O
spaces:O
where:O
the:O
artists:O
engage:O
with:O
onlookers:O
and:O
answer:O
questions:O
about:O
their:O
unique:O
technique:O
.:O