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

Q: Sentence: 'two elephants walking on cement next to wall'. Find frequency of the letter 'n'

A: 5
****
Q: Sentence: 'a batter, catcher and umpire waiting for the pitch and a major league baseball game'. Find frequency of the letter 'c'

A: 3
****
Q: Sentence: 'a couple of horses standing near a road'. Find frequency of the letter 'h'

A:
1
****
