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 line for food at a food truck'. How many words contain the letter 'c' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'five sheep out in an open field eating straw'. How many words contain the letter 'd' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a bench sitting next to the ocean with purple bows on it'. How many words contain the letter 'd' in the sentence.

Ex Output:

0