In this task, you need to count the number of times the given letter appears in the given sentence.
--------
Question: Sentence: 'a flock of sheep grazing in a park'. Find frequency of the letter 'f'

Answer: 2


Question: Sentence: 'a picture of a toilet and toilet paper in a bathroom'. Find frequency of the letter 'o'

Answer: 5


Question: Sentence: 'an uneaten meal on a plate with a bowl of fruit'. Find frequency of the letter 'h'

Answer:
1