With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
continent-wide
average
surface
temperature
trend
of
Antarctica
is
positive
and
statistically
significant
at
&
gt
;
/decade
since
1957
.
The:O
continent-wide:O
average:O
surface:O
temperature:O
trend:O
of:O
Antarctica:location-other
is:O
positive:O
and:O
statistically:O
significant:O
at:O
&:O
gt:O
;:O
/decade:O
since:O
1957:O
.:O