With no explanation, label each line with "O", "person-director", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
was
introduced
by
his
father
to
the
television
producer
Matthew
Robinson
,
who
mentored
Hooper
and
gave
him
his
first
television
directing
work
.
He:O
was:O
introduced:O
by:O
his:O
father:O
to:O
the:O
television:O
producer:O
Matthew:person-other
Robinson:person-other
,:O
who:O
mentored:O
Hooper:person-director
and:O
gave:O
him:O
his:O
first:O
television:O
directing:O
work:O
.:O