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

Ex Input:
Sentence: 'a man skiing through a snowcovered street area'. How many words contain the letter 'p' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man srufing the waves on a board in front of 3 tall pillars'. How many words contain the letter 'n' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'a women and a boy sitting at a table eating pizza'. How many words contain the letter 'q' in the sentence.

Ex Output:

0