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

Input: Consider Input: Sentence: 'a man is sitting in a cubicle with a computer'. How many words contain the letter 'a' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a cat is walking on a wooden deck in the snow'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a large united jetliner sitting on top of an airport'. How many words contain the letter 'j' in the sentence.


Output: 1