With no explanation, label each line with "organization-media/newspaper", "art-broadcastprogram", "O", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
(
The
BBC
program
Rough
Justice
covered
the
murder
conviction
in
'
Murder
at
the
Studio
'
,
which
was
first
broadcast
1
April
1997
)
.
(:O
The:O
BBC:organization-media/newspaper
program:O
Rough:art-broadcastprogram
Justice:art-broadcastprogram
covered:O
the:O
murder:O
conviction:O
in:O
':O
Murder:art-broadcastprogram
at:art-broadcastprogram
the:art-broadcastprogram
Studio:art-broadcastprogram
':O
,:O
which:O
was:O
first:O
broadcast:O
1:O
April:O
1997:O
):O
.:O