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

Ex Input:
Sentence: 'a living room filled with furniture and a large wooden shelf'. How many words contain the letter 'e' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'a white longheaired dog eating a birthday cake'. How many words contain the letter 'z' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a woman is riding the halfpipe on her skateboard'. How many words contain the letter 'a' in the sentence.

Ex Output:

4