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

[EX Q]: Sentence: 'the snowboarder wearing a dark helmet sprays snow into the air'. Find frequency of the letter 'w'
[EX A]: 3

[EX Q]: Sentence: 'a toilet filled with a brown liner and dirty water'. Find frequency of the letter 't'
[EX A]: 5

[EX Q]: Sentence: 'two beds with white linens are next to each other'. Find frequency of the letter 'w'
[EX A]:
3