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: Steve and Lana went to the grocery store. Sentence2: Steve noticed a large tear in the seat of Lana's pants. Sentence3: Lana pulled her shirt down to cover the tear in her pants. Sentence4: She made Steve bend over to get groceries on the lower shelf. Sentence5: After they got home, Lana mended her torn pants.
Steve, Lana