With no explanation, label each line with "organization-media/newspaper", "O", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
was
best
known
for
doing
radio
play-by-play
for
the
Chicago
Cubs
,
first
on
WIND
(
1955-56
)
and
then
on
WGN
-
(
1957–64
)
.
He:O
was:O
best:O
known:O
for:O
doing:O
radio:O
play-by-play:O
for:O
the:O
Chicago:organization-sportsteam
Cubs:organization-sportsteam
,:O
first:O
on:O
WIND:organization-media/newspaper
(:O
1955-56:O
):O
and:O
then:O
on:O
WGN:organization-media/newspaper
-:O
(:O
1957–64:O
):O
.:O