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

Ex Input:
Sentence: 'a sign reading butt street on the corner of a building with a no parking sign below it'. How many words contain the letter 'h' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a group of giraffes walk across an open area'. How many words contain the letter 'm' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a person sitting on a couch on the laptop in front of fireplace'. How many words contain the letter 'j' in the sentence.

Ex Output:

0