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

Sentence: 'dental personnel in dentist office standing in front of a computer screen'. How many words contain the letter 'w' in the sentence.
0

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

Sentence: 'a group of people that are standing in the water'. How many words contain the letter 'n' in the sentence.

2