In this task, you need to count the number of times the given letter appears in the given sentence.

[EX Q]: Sentence: 'guy leans on truck's hood while taking pics next to parked motorcycles'. Find frequency of the letter 's'
[EX A]: 4

[EX Q]: Sentence: 'a crowd of fans watch soccer players from stadium seating'. Find frequency of the letter 'f'
[EX A]: 3

[EX Q]: Sentence: 'here are two generations enjoying asian cuisine  at a restaurant'. Find frequency of the letter 'g'
[EX A]:
2