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

Input: Consider Input: Sentence: 'a bunch of white hyacinths arranged in a vase'. How many words contain the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man and woman posing in front of a truck'. How many words contain the letter 'c' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'two women standing next to each other while holding up a mirror'. How many words contain the letter 'a' in the sentence.


Output: 3