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

[EX Q]: Sentence: 'a family sitting at a table in a restaurant looking at their phones'. Find frequency of the letter 't'
[EX A]: 8

[EX Q]: Sentence: 'a man flying through the air on top of a skateboard'. Find frequency of the letter 'r'
[EX A]: 3

[EX Q]: Sentence: 'a young boy holding a tennis racquet taking a swing at a ball'. Find frequency of the letter 'a'
[EX A]:
8