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

Q: Sentence: 'a group of giraffes walk together by a hill'. Find frequency of the letter 'b'

A: 1
****
Q: Sentence: 'the miniature, elaborate exhibit depicts an ancient boating scene'. Find frequency of the letter 'n'

A: 6
****
Q: Sentence: 'a blurry view of trucks in an airport beside an airplane'. Find frequency of the letter 'a'

A:
6
****