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

Input: Consider Input: Sentence: 'a jet airliner carrying a small shuttle above it'. How many words contain the letter 'r' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'this is a portion of a painting showing a banana and an orange'. How many words contain the letter 't' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a man standing in a living room playing the wii'. How many words contain the letter 'p' in the sentence.


Output: 1