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

[EX Q]: Sentence: 'a surfer is in the middle of an ocean wave'. Find frequency of the letter 'i'
[EX A]: 3

[EX Q]: Sentence: 'statues of 2 zebras and 1 giraffe in a doorway'. Find frequency of the letter 'a'
[EX A]: 6

[EX Q]: Sentence: 'three people in a room with one holding a plastic bat.'. Find frequency of the letter 'l'
[EX A]:
3