Given the task definition and input, reply with output. In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: Sage and Belle got to the park early that morning. Sentence2: They wanted to take the new hiking trail to the river. Sentence3: After hiking a short distance they noticed that the trail stopped. Sentence4: Supposing that they'd taken the wrong trail, they turned around. Sentence5: But later they found out that the new trail had just been cut short.
Belle, Sage