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

Sentence: 'people are parked along side the road by pay here signs'. How many words contain the letter 'a' in the sentence.
5

Sentence: 'a couple is fast asleep at 3 in the morning'. How many words contain the letter 'y' in the sentence.
0

Sentence: 'a sandwich and some french fries are on a white plate'. How many words contain the letter 'x' in the sentence.

0