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

Ex Input:
Sentence: 'some people are sitting around a black table'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'an lshaped desk covered in various computers and accessories'. How many words contain the letter 'e' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'a giraffe standing next to a tree surrounded by grass'. How many words contain the letter 'm' in the sentence.

Ex Output:

0