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 that is sitting at a table with a bowl'. How many words contain the letter 'k' in the sentence.

Output: 0


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 yellow furniture moving truck parked next to a traffic light'. How many words contain the letter 'y' in the sentence.


Output: 1