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 ":".
The
football
field
and
cindered
track
were
completed
during
that
summer
and
dedicated
on
September
30
,
1949
.
The:O
football:O
field:O
and:O
cindered:O
track:O
were:O
completed:O
during:O
that:O
summer:O
and:O
dedicated:O
on:O
September:O
30:O
,:O
1949:O
.:O