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

[EX Q]: Sentence: 'a picture of some horses and a person in the street'. How many words contain the letter 'r' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a young man in a bunch of waves on his board'. How many words contain the letter 'j' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a remote control sitting in a persons hand'. How many words contain the letter 'z' in the sentence.
[EX A]:
0