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

Input: Consider Input: Sentence: 'a name and clock lit up at night'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a college student throws a frisbee in a field'. How many words contain the letter 't' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'food on display under a glass display case'. How many words contain the letter 'k' in the sentence.


Output: 0