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

Ex Input:
Sentence: 'a kitchen filled with appliances and furniture next to windows'. How many words contain the letter 'p' in the sentence.

Ex Output:
1

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: 'black cat sitting on a closed white toilet seat'. How many words contain the letter 'd' in the sentence.

Ex Output:
1