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

[Q]: Sentence: 'pair of one kind of birds and another bird perched on a railing'. How many words contain the letter 'j' in the sentence.
[A]: 0


[Q]: Sentence: 'there is a person awaiting to cross this street'. How many words contain the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a big round red clock in the middle of a building'. How many words contain the letter 'q' in the sentence.
[A]:
0