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

Q: Sentence: 'a display case filled with lots of different clocks'. Find frequency of the letter 'w'

A: 1
****
Q: Sentence: 'a couple of buildings that has a bus out front'. Find frequency of the letter 'a'

A: 4
****
Q: Sentence: 'a close shot of a stop sign over the cloudy sky'. Find frequency of the letter 'o'

A:
6
****