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

[Q]: Sentence: 'a large bathroom with marble floor, counter, and bath'. Find frequency of the letter 'f'
[A]: 1


[Q]: Sentence: 'a teenager witting on a futon couch holding gaming controls in both hands'. Find frequency of the letter 'c'
[A]: 3


[Q]: Sentence: 'a man holding bags of luggage off the side of a boat'. Find frequency of the letter 'a'
[A]:
6