With no explanation, label each line with "person-athlete", "organization-sportsteam", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Steel
began
his
career
at
local
juvenile
side
Dunipace
Thistle
,
signing
for
Junior
side
Bo'ness
Cadora
in
the
summer
of
1938
,
whilst
still
15
years
of
age
.
Steel:person-athlete
began:O
his:O
career:O
at:O
local:O
juvenile:O
side:O
Dunipace:organization-sportsteam
Thistle:organization-sportsteam
,:O
signing:O
for:O
Junior:O
side:O
Bo'ness:organization-sportsteam
Cadora:organization-sportsteam
in:O
the:O
summer:O
of:O
1938:O
,:O
whilst:O
still:O
15:O
years:O
of:O
age:O
.:O