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

Input: Consider Input: Sentence: 'an older fighter plan sitting next to a group military men'. How many words contain the letter 'y' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a kitchen in a camp with gear and coats laid out'. How many words contain the letter 'i' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a long red couch in a living room'. How many words contain the letter 'c' in the sentence.


Output: 1