Question: What type of surface is the all-england championships at wimbledon played on?
Disambiguated questions and answers: question: What general type of surface is the all-england championships at wimbledon played on?
What type of grass was the all-england championships at wimbledon played on before 2002?
What type of grass is the all-england championships at wimbledon played on since 2002?
answer: grass
outdoor grass courts
Grass outdoors
70% ryegrass and 30% Creeping Red Fescue
100% perennial ryegrass
Natural Questions answer: outdoor grass courts (from the Wikipedia article "The Championships, Wimbledon")