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

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 man with a long coat and a hat skating on the road'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a women on the beach holding a surfboard'. How many words contain the letter 'v' in the sentence.

Ex Output:

0