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

Ex Input:
Sentence: 'cars parked on the side of the road beside a fire hydrant'. How many words contain the letter 'p' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a woman is smiling next to a dog'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a dog that his holding a frisbee in his mouth'. How many words contain the letter 't' in the sentence.

Ex Output:

2