With no explanation, label each line with "product-other", "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
event
may
have
been
where
she
first
met
future
husband
and
dance
partner
Erick
Hawkins
,
who
was
appearing
with
Ballet
Caravan
.
The:O
event:O
may:O
have:O
been:O
where:O
she:O
first:O
met:O
future:O
husband:O
and:O
dance:O
partner:O
Erick:person-artist/author
Hawkins:person-artist/author
,:O
who:O
was:O
appearing:O
with:O
Ballet:product-other
Caravan:product-other
.:O