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

Ex Input:
Sentence: 'a lighthouse with birds flying by it at a bay'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a cat in a tie sits on the couch'. How many words contain the letter 't' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a display case inside of a restaurant filled with pies and sandwiches'. How many words contain the letter 'h' in the sentence.

Ex Output:

2