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 ":".
The
director
was
Herbert
Gresham
,
with
choreography
by
Julian
Alfred
.
The:O
director:O
was:O
Herbert:person-director
Gresham:person-director
,:O
with:O
choreography:O
by:O
Julian:person-other
Alfred:person-other
.:O