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

Ex Input:
Sentence: 'a bus station full of people walking on the side walk'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a pizza with sauce cheese and sausage sitting on a table'. How many words contain the letter 's' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a skier decked out in winter gear holding out their poles'. How many words contain the letter 'p' in the sentence.

Ex Output:

1