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

Sentence: 'a sign that shows you are entering into joshua tree national park'. How many words contain the letter 't' in the sentence.
5

Sentence: 'the tennis player returns a serve of the tennis ball'. How many words contain the letter 'q' in the sentence.
0

Sentence: 'a family standing next to each other next to a kid'. How many words contain the letter 'm' in the sentence.

1