With no explanation, label each line with "O", "organization-other", "location-GPE", "event-sportsevent", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
Before
joining
the
coaching
profession
,
Glass
spent
two
years
in
the
United
States
Air
Force
,
leading
Carswell
Air
Force
Base
to
the
1952
national
service
championship
.
Before:O
joining:O
the:O
coaching:O
profession:O
,:O
Glass:person-other
spent:O
two:O
years:O
in:O
the:location-GPE
United:location-GPE
States:location-GPE
Air:organization-other
Force:organization-other
,:O
leading:O
Carswell:organization-other
Air:organization-other
Force:organization-other
Base:organization-other
to:O
the:O
1952:event-sportsevent
national:event-sportsevent
service:event-sportsevent
championship:event-sportsevent
.:O