With no explanation, label each line with "O", "person-actor", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
was
the
son
of
actor
George
Relph
.
He:O
was:O
the:O
son:O
of:O
actor:O
George:person-actor
Relph:person-actor
.:O