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

[Q]: Sentence: 'a bunch of people are standing out in a field a red one has their arms out as a white ball is in the air'. Find frequency of the letter 'e'
[A]: 9


[Q]: Sentence: 'a group of men standing around a table cutting a cake'. Find frequency of the letter 'g'
[A]: 3


[Q]: Sentence: 'a brown bear outside looking hungry in a picture'. Find frequency of the letter 'e'
[A]:
3