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

Input: Consider Input: Sentence: 'an image of a person holding a blunt object is rendered in red and blue tones'. How many words contain the letter 'x' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a photograph of a restroom toilet in front of tiles'. How many words contain the letter 'c' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'there are two children walking among a herd of sheep'. How many words contain the letter 's' in the sentence.


Output: 1