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

Ex Input:
Sentence: 'a clean kitchen with several cabinets a sink a coffee maker and a vase of flowers'. How many words contain the letter 'p' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a bottle of beer and a red plate of food'. How many words contain the letter 'u' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'three sheep near each other with large horns'. How many words contain the letter 'k' in the sentence.

Ex Output:

0