With no explanation, label each line with "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1971
,
Hanson
suffered
a
heart
attack
and
had
to
take
time
away
from
wrestling
.
In:O
1971:O
,:O
Hanson:person-athlete
suffered:O
a:O
heart:O
attack:O
and:O
had:O
to:O
take:O
time:O
away:O
from:O
wrestling:O
.:O