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

[EX Q]: Sentence: 'a pizza is in a box on a table outside'. Find frequency of the letter 'u'
[EX A]: 1

[EX Q]: Sentence: 'a close up of a bird on the outside window sill'. Find frequency of the letter 'c'
[EX A]: 1

[EX Q]: Sentence: 'a man outside playing with a multi colored kite'. Find frequency of the letter 'd'
[EX A]:
2