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 man standing in front of a statue near a metal pole'. Find frequency of the letter 'f'

A: 2
****
Q: Sentence: 'a woman clad only in a dress shirt and tie reclining on a sofa'. Find frequency of the letter 'a'

A:
7
****