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

Ex Input:
Sentence: 'two animals are walking along in a field'. How many words contain the letter 'y' in the sentence.

Ex Output:
0

Ex Input:
Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Ex Output:
4

Ex Input:
Sentence: 'a little girl is jumping on a hotel room bed'. How many words contain the letter 'p' in the sentence.

Ex Output:
1