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 ":".
I
Was
Dancing
is
a
play
by
Edwin
O'Connor
.
I:art-other
Was:art-other
Dancing:art-other
is:O
a:O
play:O
by:O
Edwin:person-artist/author
O'Connor:person-artist/author
.:O