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

Q: Sentence: 'a crowd of fans watch soccer players from stadium seating'. Find frequency of the letter 'f'

A: 3
****
Q: Sentence: 'a woman walking on a shore next to a river'. Find frequency of the letter 'v'

A: 1
****
Q: Sentence: 'there is a toilet brush and holder in this very modern bathroom'. Find frequency of the letter 'r'

A:
6
****