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

Q: Sentence: 'a small boat travels on the water next to the shore'. Find frequency of the letter 'a'

A: 5
****
Q: Sentence: 'an airplane is being towed away from the jet bridge'. Find frequency of the letter 's'

A: 1
****
Q: Sentence: 'people standing around a kitchen island with two fake sharks'. Find frequency of the letter 'a'

A:
6
****