In this task, you need to count the number of words in a sentence that contain the given letter

[EX Q]: Sentence: 'adults with helmets sitting on tricycles made for children'. How many words contain the letter 'r' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a woman with a shopping bag talking on a cell phone'. How many words contain the letter 'e' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'underside of a plane flying through a cloudy sky'. How many words contain the letter 'q' in the sentence.
[EX A]:
0