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

[Q]: Sentence: 'a bunch of fruit sitting in a bowl, its overflowing'. Find frequency of the letter 't'
[A]: 4


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


[Q]: Sentence: 'a toilet seat with a fake foam butt on top of it'. Find frequency of the letter 'w'
[A]:
1