With no explanation, label each line with "O", "building-sportsfacility", "location-GPE", "organization-sportsleague", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
The
1999
Mr.
Olympia
contest
was
an
IFBB
professional
bodybuilding
competition
held
October
21–24
,
1999
at
the
Mandalay
Bay
Arena
in
Las
Vegas
,
Nevada
.
The:O
1999:O
Mr.:event-sportsevent
Olympia:event-sportsevent
contest:event-sportsevent
was:O
an:O
IFBB:organization-sportsleague
professional:O
bodybuilding:O
competition:O
held:O
October:O
21–24:O
,:O
1999:O
at:O
the:O
Mandalay:building-sportsfacility
Bay:building-sportsfacility
Arena:building-sportsfacility
in:O
Las:location-GPE
Vegas:location-GPE
,:O
Nevada:location-GPE
.:O