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

Input: Consider Input: Sentence: 'some stop lights that are at an intersection'. How many words contain the letter 'c' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.

Output: 6


Input: Consider Input: Sentence: 'an lshaped couch in a living room with a coffee table'. How many words contain the letter 'w' in the sentence.


Output: 1