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

[Q]: Sentence: 'older man getting ready to swing his bat at a ball on a stand in front of a group of viewers'. Find frequency of the letter 'n'
[A]: 7


[Q]: Sentence: 'a toilet of some sort near a sink of some sort'. Find frequency of the letter 'o'
[A]: 7


[Q]: Sentence: 'pitcher in a windup, just before releasing the baseball'. Find frequency of the letter 'a'
[A]:
4