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

Ex Input:
Sentence: 'a man rides a black motorcycle around a curve'. How many words contain the letter 'y' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man paddle boarding in the middle of the ocean'. How many words contain the letter 'i' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a very large kitchen with lots of sinks and a microwave'. How many words contain the letter 'v' in the sentence.

Ex Output:

2