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

Ex Input:
Sentence: 'a person standing in the kitchen with an object in hand'. How many words contain the letter 't' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'adult men playing with flying disc at popular beach'. How many words contain the letter 'o' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man in casual business attire is riding a skateboard down the street'. How many words contain the letter 'z' in the sentence.

Ex Output:

0