With no explanation, label each line with "person-athlete", "event-sportsevent", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Hamstring
issues
delayed
Ball
's
start
to
the
season
and
then
played
in
the
VFL
to
get
his
form
back
.
Hamstring:person-athlete
issues:O
delayed:O
Ball:person-athlete
's:O
start:O
to:O
the:O
season:O
and:O
then:O
played:O
in:O
the:O
VFL:event-sportsevent
to:O
get:O
his:O
form:O
back:O
.:O