Given the task definition, example input & output, solve the new input case.
In this task, you are given a sentence and a category word that defines the relation between the input sentence and the output to be generated. Your job is to generate another sentence that satisfies the relation specified by the category. If the category is specified as entailment, then the output sentence must clearly agree with the input sentence. If the category specified is contradiction , then the output sentence must clearly disagree with the input sentence.
Example: sentence_A: A young girl is enjoying the green grassy trail . category: entailment
Output: A young girl is happily having fun on the green grassy hike
The words happy and enjoying both mean the same, so they are entailed to each other.

New input case for you: sentence_A: A surfer is riding a big wave. category: entailment
Output:
The surfer is riding a big wave