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

Input: Consider Input: Sentence: 'there is a red tea pot that has flowers in it'. How many words contain the letter 'o' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'some zebras dirt plants and bushes'. How many words contain the letter 'r' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'there is a mirror and towel rack in the bathroom'. How many words contain the letter 'x' in the sentence.


Output: 0