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

Q: Sentence: 'there is a woman pointing at something with her dog'. Find frequency of the letter 'i'

A: 5
****
Q: Sentence: 'a social occasion of people are uncovered before the open day'. Find frequency of the letter 'c'

A: 4
****
Q: Sentence: 'two men engaged in a game of soccer on a grass field'. Find frequency of the letter 'a'

A:
5
****