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

Ex Input:
Sentence: 'a man wearing a striped tie and a hat'. How many words contain the letter 'h' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a pizza pie is on a wooden serving tray'. How many words contain the letter 's' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a large airplane taking off for a flight'. How many words contain the letter 'v' in the sentence.

Ex Output:

0