With no explanation, label each line with "O", "person-artist/author", "art-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Boy
Friend
(
sometimes
misspelled
The
Boyfriend
)
is
a
musical
by
Sandy
Wilson
.
The:art-other
Boy:art-other
Friend:art-other
(:O
sometimes:O
misspelled:O
The:art-other
Boyfriend:art-other
):O
is:O
a:O
musical:O
by:O
Sandy:person-artist/author
Wilson:person-artist/author
.:O