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

Ex Input:
Sentence: 'a white pickup truck thats parked on the corner of an intersection'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a person is riding a bicycle on the street'. How many words contain the letter 'b' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a yellow bus traveling past a pink building net to a street'. How many words contain the letter 'h' in the sentence.

Ex Output:

0