With no explanation, label each line with "O", "organization-company", "person-actor", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Ramkumar
's
brother
Prabhu
played
Senthilnathan
,
a
civil
engineer
and
owner
of
Ganesh
Constructions
.
Ramkumar:person-other
's:O
brother:O
Prabhu:person-actor
played:O
Senthilnathan:person-other
,:O
a:O
civil:O
engineer:O
and:O
owner:O
of:O
Ganesh:organization-company
Constructions:organization-company
.:O