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

[EX Q]: Sentence: 'a person holding a wine glass in one hand and bread sticks in the other'. Find frequency of the letter 'd'
[EX A]: 4

[EX Q]: Sentence: 'children with scissors and construction paper in a school classroom'. Find frequency of the letter 'c'
[EX A]: 6

[EX Q]: Sentence: 'several motorcycles and cars sitting on a grassy lot'. Find frequency of the letter 'e'
[EX A]:
3