Question: How many seasons is there of the simpsons?
Disambiguated questions and answers: question: How many seasons is there of the simpsons that started in 2017 or earlier?
How many seasons is there of the simpsons that started in 2016 or earlier?
How many seasons is there of the simpsons that started in 2015 or earlier?
answer: 29
28
27
Natural Questions answer: 29 (from the Wikipedia article "The Simpsons")