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

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

A: 5
****
Q: Sentence: 'a man riding a white surfboard on a large wave'. Find frequency of the letter 'a'

A: 7
****
Q: Sentence: 'two laptops sit on top of other items'. Find frequency of the letter 'l'

A:
1
****