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.

[Q]: Sentence1: A strange lady walked into the club. Sentence2: She flirted with any man in sight and was asking for free drinks. Sentence3: Due to her behavior, the security guards came. Sentence4: They escorted her to the front of the club. Sentence5: She tried fighting back but she couldn't get inside the club again.
[A]: Security guards, Strange lady, Any man

[Q]: Sentence1: My sister is afraid of spiders. Sentence2: She jumps and screams every time she sees one. Sentence3: I love teasing her with spiders and watching her run away. Sentence4: At school, my sister learned about spiders and was no longer afraid. Sentence5: Now I can't have fun teasing her about spiders.
[A]: I (myself), My sister, Spider, Spiders

[Q]: Sentence1: My grandma joined a contest in her small hometown. Sentence2: She believed she had the biggest tree, and wanted to win. Sentence3: Her tree was humongous, and very old. Sentence4: She ended up winning the contest, and a check for $100. Sentence5: A picture was posted in the paper of her holding her check.
[A]:
I (myself), My grandma