With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
His
brother
George
still
played
for
the
Senators
.
His:O
brother:O
George:person-athlete
still:O
played:O
for:O
the:O
Senators:organization-sportsteam
.:O