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

[EX Q]: Sentence: 'some food on plates next to each other on a table'. Find frequency of the letter 'e'
[EX A]: 6

[EX Q]: Sentence: 'young boy flying kite in large field at outdoor event'. Find frequency of the letter 'y'
[EX A]: 3

[EX Q]: Sentence: 'a train crosses a bridge over at river at dusk'. Find frequency of the letter 'a'
[EX A]:
5