With no explanation, label each line with "location-GPE", "O", "event-other", "building-hotel", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
49th
World
Science
Fiction
Convention
(
Worldcon
)
,
also
known
as
Chicon
V
,
was
held
August
29–September
2
,
1991
,
at
the
Hyatt
Regency
Chicago
in
Chicago
,
Illinois
,
USA
.
The:O
49th:O
World:event-other
Science:event-other
Fiction:event-other
Convention:event-other
(:O
Worldcon:event-other
):O
,:O
also:O
known:O
as:O
Chicon:event-other
V:event-other
,:O
was:O
held:O
August:O
29–September:O
2:O
,:O
1991:O
,:O
at:O
the:O
Hyatt:building-hotel
Regency:building-hotel
Chicago:building-hotel
in:O
Chicago:location-GPE
,:O
Illinois:location-GPE
,:O
USA:location-GPE
.:O