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

[EX Q]: Sentence: 'a man with a large grey and black beard and glasses and a tie'. Find frequency of the letter 'e'
[EX A]: 5

[EX Q]: Sentence: 'a couple is cutting in to a cake at a wedding'. Find frequency of the letter 'd'
[EX A]: 2

[EX Q]: Sentence: 'fruits and vegetable in baskets on a wooden surface in front of a window'. Find frequency of the letter 'u'
[EX A]:
2