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 ":".
It
was
led
by
Hall
of
Famer
Grover
Cleveland
Alexander
,
who
had
one
of
the
greatest
seasons
in
history
and
won
the
pitching
triple
crown
.
It:O
was:O
led:O
by:O
Hall:O
of:O
Famer:O
Grover:person-athlete
Cleveland:person-athlete
Alexander:person-athlete
,:O
who:O
had:O
one:O
of:O
the:O
greatest:O
seasons:O
in:O
history:O
and:O
won:O
the:O
pitching:O
triple:O
crown:O
.:O