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

Input: Consider Input: Sentence: 'a woman bent down on the street holding her umbrella'. How many words contain the letter 'x' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a tennis player holds a ball as if to throw it in the air to serve it'. How many words contain the letter 'o' in the sentence.

Output: 4

Input: Consider Input: Sentence: 'three women at a pastry shop in front of a large glass display case'. How many words contain the letter 'j' in the sentence.
Output: 0