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

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: 'a small child next to a bunch of bananas and an orange'. How many words contain the letter 'p' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'two giraffes in an enclosure eating a tree'. How many words contain the letter 'r' in the sentence.


Output: 3