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

Q: Sentence: 'a man in a black wet suit rides an orange surfboard on the water'. Find frequency of the letter 'o'

A: 3
****
Q: Sentence: 'a notebook and pen are left on a park bench'. Find frequency of the letter 'e'

A: 5
****
Q: Sentence: 'some sheep that are out in the field eating some grass'. Find frequency of the letter 'o'

A:
3
****