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 photo of a toilet which is not clean'. Find frequency of the letter 'w'

A: 1
****
Q: Sentence: 'a living area with couches, coffee table and a television'. Find frequency of the letter 'o'

A:
3
****
