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

Input: Consider Input: Sentence: 'a cellphone mounted to a dashboard of a car'. How many words contain the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a very big nice looking kitchen that is well lit'. How many words contain the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a vase sitting on a table with red flowers'. How many words contain the letter 'p' in the sentence.


Output: 0