With no explanation, label each line with "location-GPE", "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Kuskokwim
300
is
among
the
more
highly
regarded
mid-distance
dogsled
races
in
Alaska
,
annually
attracting
some
of
the
top
mushers
in
the
sport
.
The:O
Kuskokwim:event-other
300:event-other
is:O
among:O
the:O
more:O
highly:O
regarded:O
mid-distance:O
dogsled:O
races:O
in:O
Alaska:location-GPE
,:O
annually:O
attracting:O
some:O
of:O
the:O
top:O
mushers:O
in:O
the:O
sport:O
.:O