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

Ex Input:
Sentence: 'a large dog curls up on the pillow on a bunk bed'. How many words contain the letter 't' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a woman poses with a large teddy bear'. How many words contain the letter 'u' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'fresh vegetables placed on a cutting board being prepared'. How many words contain the letter 'e' in the sentence.

Ex Output:

5