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

Input: Consider Input: Sentence: 'a person eating a slice of pizza on a table'. How many words contain the letter 'z' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'two angles of a frosted donut with a bite taken out of the side'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a boat is in the water overlooked by a grassy hill'. How many words contain the letter 'j' in the sentence.


Output: 0