instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a teenager witting on a futon couch holding gaming controls in both hands'. Find frequency of the letter 'c'
answer:
3


question:
Sentence: 'a large bathroom with marble floor, counter, and bath'. Find frequency of the letter 'f'
answer:
1


question:
Sentence: 'a man swinging at a pitch during a baseball game'. Find frequency of the letter 'a'
answer:

8