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

[EX Q]: Sentence: 'pizza with different vegetables sitting on top of a wooden slab'. Find frequency of the letter 'o'
[EX A]: 5

[EX Q]: Sentence: 'two elephants walking on cement next to wall'. Find frequency of the letter 'n'
[EX A]: 5

[EX Q]: Sentence: 'large white cow standing in a field by a barn'. Find frequency of the letter 'i'
[EX A]:
4