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

Input: Consider Input: Sentence: 'there are trains that are on the train track'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a small child next to a bunch of bananas and an orange'. How many words contain the letter 'p' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'there are two sailboats out in the water today'. How many words contain the letter 'w' in the sentence.


Output: 2