With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Pinafore
''
,
also
singing
the
role
of
Sir
Joseph
Porter
.
Pinafore:O
'':O
,:O
also:O
singing:O
the:O
role:O
of:O
Sir:O
Joseph:person-other
Porter:person-other
.:O