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

Q: Sentence: 'a yellow fire hydrant in the forefront of a roadway'. Find frequency of the letter 'r'

A: 5
****
Q: Sentence: 'a man in a black shirt prepares to catch a frisbee'. Find frequency of the letter 'f'

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

A:
1
****