With no explanation, label each line with "location-GPE", "O", "person-athlete", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
One
of
the
most
famous
athletes
to
have
used
this
method
is
Emil
Zátopek
,
the
Czech
long-distance
runner
,
4
times
Olympic
gold
medalist
and
former
holder
of
18
world
records
.
One:O
of:O
the:O
most:O
famous:O
athletes:O
to:O
have:O
used:O
this:O
method:O
is:O
Emil:person-athlete
Zátopek:person-athlete
,:O
the:O
Czech:location-GPE
long-distance:O
runner:O
,:O
4:O
times:O
Olympic:event-sportsevent
gold:O
medalist:O
and:O
former:O
holder:O
of:O
18:O
world:O
records:O
.:O