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

Input: Consider Input: Sentence: 'pieces of food sit on the plate the man is holding'. How many words contain the letter 'o' in the sentence.

Output: 4

Input: Consider Input: Sentence: 'horses standing and laying down in the grass on a hill above a lake'. How many words contain the letter 'g' in the sentence.

Output: 3

Input: Consider Input: Sentence: 'a hand holding up a smart phone above a crowd'. How many words contain the letter 'v' in the sentence.
Output: 1