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

Ex Input:
Sentence: 'a baseball player in the middle of a swing'. How many words contain the letter 'p' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a stop sign with some words beneath it'. How many words contain the letter 't' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a couple of giraffe standing next to a tall building'. How many words contain the letter 'v' in the sentence.

Ex Output:

0