With no explanation, label each line with "O", "organization-sportsleague", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Athletic
teams
compete
as
the
Beaver
Falls
Tigers
in
the
Western
Pennsylvania
Interscholastic
Athletic
League
.
Athletic:O
teams:O
compete:O
as:O
the:O
Beaver:organization-sportsteam
Falls:organization-sportsteam
Tigers:organization-sportsteam
in:O
the:O
Western:organization-sportsleague
Pennsylvania:organization-sportsleague
Interscholastic:organization-sportsleague
Athletic:organization-sportsleague
League:organization-sportsleague
.:O