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

Q: Sentence: 'there is a woman pointing at something with her dog'. Find frequency of the letter 'i'

A: 5
****
Q: Sentence: 'three men in military suits are sitting on a bench,'. Find frequency of the letter 'a'

A: 3
****
Q: Sentence: 'a woman standing next to a cat laying on the ground'. Find frequency of the letter 'y'

A:
1
****