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

Ex Input:
Sentence: 'a horse that has a car behind it in the street'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man and a woman stand under an umbrella'. How many words contain the letter 's' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'the man who uses this bathroom shaved this morning'. How many words contain the letter 'f' in the sentence.

Ex Output:

0