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

[EX Q]: Sentence: 'a piece of film shows two street signs crossing each other'. Find frequency of the letter 'f'
[EX A]: 2

[EX Q]: Sentence: 'a gray elephant is in a grassy field'. Find frequency of the letter 'e'
[EX A]: 3

[EX Q]: Sentence: 'a cow walking towards a sheep in a desert like area'. Find frequency of the letter 'e'
[EX A]:
6