With no explanation, label each line with "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Racing
against
colts
,
she
won
from
Ashenden
with
Count
Pahlen
(
later
to
win
the
William
Hill
Futurity
)
in
third
place
and
was
ridden
by
Lester
Piggott
,
replacing
the
injured
Willie
Carson
.
Racing:O
against:O
colts:O
,:O
she:O
won:O
from:O
Ashenden:person-athlete
with:O
Count:person-athlete
Pahlen:person-athlete
(:O
later:O
to:O
win:O
the:O
William:person-athlete
Hill:person-athlete
Futurity:person-athlete
):O
in:O
third:O
place:O
and:O
was:O
ridden:O
by:O
Lester:person-athlete
Piggott:person-athlete
,:O
replacing:O
the:O
injured:O
Willie:person-athlete
Carson:person-athlete
.:O