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

Ex Input:
Sentence: 'green bananas or plantains hang in a bunch on a tree'. How many words contain the letter 'm' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'two motorcycle riders pose with motorcycles in front of a brick building'. How many words contain the letter 'c' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a couple of people that are in front of water'. How many words contain the letter 'x' in the sentence.

Ex Output:

0