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 couple of people that are on some skateboards'. How many words contain the letter 'o' in the sentence.
[A]: 6


[Q]: Sentence: 'a room that has a lot of paintings on the wall'. How many words contain the letter 'c' in the sentence.
[A]:
0