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

[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: 'soccer players on opposite teams fight for control over a ball'. Find frequency of the letter 't'
[EX A]: 4

[EX Q]: Sentence: 'a person wind surfing does a trick above water'. Find frequency of the letter 'n'
[EX A]:
3