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

Ex Input:
Sentence: 'a lit street light next to a bar'. How many words contain the letter 'w' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'the boy is in batting stance to waiting'. How many words contain the letter 'h' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a crowd of people standing around in a forest next to a train'. How many words contain the letter 'e' in the sentence.

Ex Output:

3