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

Input: Consider Input: Sentence: 'two men and two men having drinks at a bar'. How many words contain the letter 'g' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a pair of zebras looking towards the camera in a barren field'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a cat sitting on top of a toilet seat in a bathroom'. How many words contain the letter 'r' in the sentence.


Output: 1