2011 Kenyan Premier League

Columns: Team | Location | Stadium | Capacity
A.F.C . Leopards | Nairobi | Nyayo National Stadium | 30,000 | Bandari | Mombasa | Mombasa Municipal Stadium | 10,000 | Chemelil Sugar | Chemelil | Chemelil Sports Complex | 5,000 | Congo JMJ United | Mombasa | Mombasa Municipal Stadium | 10,000 | Gor Mahia | Nairobi | Nairobi City Stadium | 15,000 | Karuturi Sports | Naivasha | Naivasha Stadium | 5,000 | KCB | Nairobi | Nairobi City Stadium | 15,000 | Mathare United | Nairobi | Kasarani Stadium | 60,000

Example questions:
What year was the city , which is a home for the team that competed in Kenyan Premier League in 2011 , containing Nyayo National Stadium founded ? | What county contains the city , which is a home for the team that competed in Kenyan Premier League in 2011 , containing Green Stadium ?

Answers:
1899 | Migori County