With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Brennan
published
several
hundred
short
stories
(
estimates
range
between
four
and
five
hundred
)
,
two
novellas
and
reputedly
thousands
of
poems
.
Brennan:person-artist/author
published:O
several:O
hundred:O
short:O
stories:O
(:O
estimates:O
range:O
between:O
four:O
and:O
five:O
hundred:O
):O
,:O
two:O
novellas:O
and:O
reputedly:O
thousands:O
of:O
poems:O
.:O