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

Q: Sentence: 'a piece of film shows two street signs crossing each other'. Find frequency of the letter 'f'

A: 2
****
Q: Sentence: 'a little child looking up to a camera holding a cell phone'. Find frequency of the letter 'g'

A: 2
****
Q: Sentence: 'a man is kayaking the rapids of a river'. Find frequency of the letter 'f'

A:
1
****