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

[EX Q]: Sentence: 'baseball player reaching back as he's about to throw the ball'. Find frequency of the letter 'e'
[EX A]: 5

[EX Q]: Sentence: 'a man with a large grey and black beard and glasses and a tie'. Find frequency of the letter 'e'
[EX A]: 5

[EX Q]: Sentence: 'a man flying through the air on top of a skateboard'. Find frequency of the letter 'h'
[EX A]:
3