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

Ex Input:
Sentence: 'a small plain kitchen with a white stove and microwave'. How many words contain the letter 'h' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a team of junior baseball players carrying a trophy'. How many words contain the letter 'w' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man isdoing skateboard tricks on a graffiti covered ramp'. How many words contain the letter 'f' in the sentence.

Ex Output:

1