With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
As
a
child
,
he
aspired
to
be
a
professional
baseball
player
,
but
did
n't
make
his
high
school
team
,
and
so
became
a
Little
League
umpire
.
As:O
a:O
child:O
,:O
he:O
aspired:O
to:O
be:O
a:O
professional:O
baseball:O
player:O
,:O
but:O
did:O
n't:O
make:O
his:O
high:O
school:O
team:O
,:O
and:O
so:O
became:O
a:O
Little:O
League:O
umpire:O
.:O