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 child on the sand and a boat and some water'. How many words contain the letter 's' in the sentence.
[A]: 2


[Q]: Sentence: 'a cow statue on the sidewalk outside of a shop'. How many words contain the letter 'i' in the sentence.
[A]:
2