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

Q: Sentence: 'a grey hummingbird by fence and tree branches'. Find frequency of the letter 'y'

A: 2
****
Q: Sentence: 'a bed with a mattress that has nothing on it'. Find frequency of the letter 'a'

A: 5
****
Q: Sentence: 'a calico cat sleeping under a computer monitor on a desk'. Find frequency of the letter 'e'

A:
5
****