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 is hitting a tennis ball with her racket'. How many words contain the letter 'c' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man sanding next to a cow in a pen'. How many words contain the letter 'h' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a close up of a hot dog in a paper container'. How many words contain the letter 'z' in the sentence.


Output: 0