With no explanation, label each line with "person-athlete", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Donaire
defeated
Methebula
by
unanimous
decision
.
Donaire:person-athlete
defeated:O
Methebula:person-athlete
by:O
unanimous:O
decision:O
.:O