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: 'a panthers football player holding a baseball bat and basketball'. How many words contain the letter 'y' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'two women and a man are posing in front of a tree'. How many words contain the letter 'u' in the sentence.

Ex Output:

0