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

[Q]: Sentence: 'a man sanding next to a cow in a pen'. How many words contain the letter 'h' in the sentence.
[A]: 0


[Q]: Sentence: 'four white and blue street signs on a wooden pole'. How many words contain the letter 'u' in the sentence.
[A]: 2


[Q]: Sentence: 'a river full of floating sailboats in mid afternoon'. How many words contain the letter 'u' in the sentence.
[A]:
1