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

Sentence: 'two skiers standing side by side in the snow posing for a picture'. How many words contain the letter 'u' in the sentence.
1

Sentence: 'a bird is standing on the edge of a book'. How many words contain the letter 'o' in the sentence.
3

Sentence: 'a silver motorcycle engine with a black leather seat'. How many words contain the letter 'l' in the sentence.

4