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

[EX Q]: Sentence: 'a person on a skateboard going down a ramp'. Find frequency of the letter 'n'
[EX A]: 4

[EX Q]: Sentence: 'a yellow and green train on a train track in a wooded area'. Find frequency of the letter 'o'
[EX A]: 4

[EX Q]: Sentence: 'a group of men sitting next to each other with baby girl and stuffed bear'. Find frequency of the letter 'e'
[EX A]:
6