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

Sentence: 'a woman poses with a large teddy bear'. How many words contain the letter 'u' in the sentence.
0

Sentence: 'a man holding an umbrella in one hand and a cell phone up to his ear in the other'. How many words contain the letter 'x' in the sentence.
0

Sentence: 'a baseball player covered in dirt runs to a base'. How many words contain the letter 'o' in the sentence.
2