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

[Q]: Sentence: 'a clothing line with teddy bears hung by their ears'. How many words contain the letter 'n' in the sentence.
[A]: 3


[Q]: Sentence: 'a dog on a deck ripping in to a plastic frisbee'. How many words contain the letter 'l' in the sentence.
[A]: 1


[Q]: Sentence: 'a boy sitting in airport terminal eating a pita'. How many words contain the letter 'z' in the sentence.
[A]:
0