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

Q: Sentence: 'a group of men standing on the side of a boat'. Find frequency of the letter 'o'

A: 5
****
Q: Sentence: 'surfboard being displayed in stor window with clothes behind it'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'a man sits on a bench with a man-made waterfall behind him'. Find frequency of the letter 'n'

A:
5
****