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: 'a blue traffic sign next to a parked car on a city street'. How many words contain the letter 'g' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a river running through a lush green countryside'. How many words contain the letter 'z' in the sentence.


Output: 0