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

Input: Consider Input: Sentence: 'a surfer in a black wet suit riding a wave in the ocean'. How many words contain the letter 'x' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'cows crowd up to a barbed wire fence under a tree'. How many words contain the letter 'n' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a display shelf with various vases on carpet'. How many words contain the letter 'q' in the sentence.


Output: 0