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 ":".
Prior
to
the
Iowa
race
,
Townley
moved
to
Athenian
Motorsports
owned
by
his
father
.
Prior:O
to:O
the:O
Iowa:O
race:O
,:O
Townley:person-athlete
moved:O
to:O
Athenian:organization-sportsteam
Motorsports:organization-sportsteam
owned:O
by:O
his:O
father:O
.:O