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

Ex Input:
Sentence: 'a bunch of cloths are piled in the sink'. How many words contain the letter 'w' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'ladies playing a video game and having fun'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man eating a hot dog in the stands'. How many words contain the letter 'a' in the sentence.

Ex Output:

5