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

Ex Input:
Sentence: 'a woman swinging a tennis racquet in the air'. How many words contain the letter 'z' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a team of junior baseball players carrying a trophy'. How many words contain the letter 'w' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a golden retriever getting squirted in the face from a water bottle'. How many words contain the letter 'd' in the sentence.

Ex Output:

2