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

[EX Q]: Sentence: 'a white bowl filled with peeled orange slices'. Find frequency of the letter 's'
[EX A]: 2

[EX Q]: Sentence: 'a little child looking up to a camera holding a cell phone'. Find frequency of the letter 'g'
[EX A]: 2

[EX Q]: Sentence: 'a blue bowl holding mashed bananas and oatmeal with a bottle of sugar and cinnamon sitting beside it'. Find frequency of the letter 'g'
[EX A]:
3