Table:
text: DeDee Nathan
Achievements
Achievements
Year_ Competition Venue Position_ Notes
1991 Pan American Games Havana, Cuba 1st Heptathlon
1993 World Indoor Championships Toronto , Canada 8th Pentathlon
1993 World Championships Stuttgart , Germany 17th Heptathlon
1995 Pan American Games Mar del Plata , Argentina 3rd Heptathlon
1995 World Championships Gothenburg , Sweden 8th Heptathlon
1997 World Indoor Championships Paris , France 7th Pentathlon
1997 World Championships Athens , Greece 7th Heptathlon
1999 World Indoor Championships Maebashi , Japan 1st Pentathlon
1999 Hypo-Meeting Götzis , Austria 1st Heptathlon
2000 Hypo-Meeting Götzis , Austria 12th Heptathlon
2000 Olympic Games Sydney , Australia 9th Heptathlon
2001 World Championships Edmonton , Canada 7th Heptathlon

Question: What year is the highest that has a venue in Edmonton Canada by DeDee Nathan?

Question: What position does a world championship competition and year greater than 1997 under DeDee Nathan?

Question: Which venue has a note of heptathlon and a year of 1991 from deDee Nathan?