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

Ex Input:
Sentence: 'a couple poses under a banner of a turkey'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a couple is fast asleep at 3 in the morning'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'two people playing tennis on a tennis court'. How many words contain the letter 'g' in the sentence.

Ex Output:

1