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

Ex Input:
Sentence: 'a cellphone mounted to a dashboard of a car'. How many words contain the letter 'p' in the sentence.

Ex Output:
1

Ex Input:
Sentence: 'people in different boats rowing around a lake'. How many words contain the letter 'b' in the sentence.

Ex Output:
1

Ex Input:
Sentence: 'blue motorcycle parked on pavement near winery sign'. How many words contain the letter 'v' in the sentence.

Ex Output:
1