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

Ex Input:
Sentence: 'the laptop is disassembled with the parts piled on the outer shell'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a plastic container filled with pastry balls sitting on a counter'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a very nice big tv that is on in a corner'. How many words contain the letter 'v' in the sentence.

Ex Output:

2