With no explanation, label each line with "O", "organization-sportsteam", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
They
defeated
Akron
in
the
MAC
Championship
game
to
become
champions
of
the
MAC
.
They:O
defeated:O
Akron:organization-sportsteam
in:O
the:O
MAC:event-sportsevent
Championship:event-sportsevent
game:O
to:O
become:O
champions:O
of:O
the:O
MAC:event-sportsevent
.:O