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

[EX Q]: Sentence: 'a little boy standing near a couch and a table'. Find frequency of the letter 'i'
[EX A]: 2

[EX Q]: Sentence: 'a police officer who is riding on a horse'. Find frequency of the letter 'p'
[EX A]: 1

[EX Q]: Sentence: 'a bathroom with two sinks, wood paneling, and a large mirror'. Find frequency of the letter 'r'
[EX A]:
5