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

[Q]: Sentence: 'a white and blue plate topped with meat and a salad'. Find frequency of the letter 'u'
[A]: 1


[Q]: Sentence: 'a bus is driving on the street behind some cars'. Find frequency of the letter 'a'
[A]: 2


[Q]: Sentence: 'a cheese pizza on a pan with a topping'. Find frequency of the letter 'h'
[A]:
2