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 ":".
Free
and
under
no
contract
,
the
band
kept
building
its
musical
career
,
recording
more
and
more
tracks
,
in
a
free
creative
spirit
,
for
a
total
of
1500
tracks
over
a
period
of
10
years
.
Free:O
and:O
under:O
no:O
contract:O
,:O
the:O
band:O
kept:O
building:O
its:O
musical:O
career:O
,:O
recording:O
more:O
and:O
more:O
tracks:O
,:O
in:O
a:O
free:O
creative:O
spirit:O
,:O
for:O
a:O
total:O
of:O
1500:O
tracks:O
over:O
a:O
period:O
of:O
10:O
years:O
.:O