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

Q: Sentence: 'a flock of sheep grazing in a park'. Find frequency of the letter 'f'

A: 2
****
Q: Sentence: 'seagulls sit on the posts of a seaside balcony by a clock tower'. Find frequency of the letter 'g'

A: 1
****
Q: Sentence: 'a meter maid checking a meter on the side of the road'. Find frequency of the letter 'h'

A:
3
****