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

Ex Input:
Sentence: 'a woman in the city is holding a bright kite'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'the view from the top of a ski slope'. How many words contain the letter 'r' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'there are some people by the side of the road'. How many words contain the letter 'j' in the sentence.

Ex Output:

0