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 ":".
In
contrast
to
what
most
people
think
,
this
peg
actually
did
not
exist
,
except
only
in
the
first
years
of
the
plan
.
In:O
contrast:O
to:O
what:O
most:O
people:O
think:O
,:O
this:O
peg:O
actually:O
did:O
not:O
exist:O
,:O
except:O
only:O
in:O
the:O
first:O
years:O
of:O
the:O
plan:O
.:O