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 laughing while sitting on a bed'. How many words contain the letter 'c' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'the bathroom has a shower toilet toilet paper and a sink with leaves in it'. How many words contain the letter 'v' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a flattened empty clear plastic bottle next to an orange on a patch of dirt grass and dead leaves'. How many words contain the letter 'f' in the sentence.


Output: 2