TASK DEFINITION: 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.
PROBLEM: Sentence1: Ruth was visiting her grandfather's farm. Sentence2: She liked animals but the tall horses scared her. Sentence3: Ruth's grandpa brought her to one of the horses. Sentence4: He showed Ruth that the horse was kind and gentle. Sentence5: Soon Ruth felt much less scared and calmed down.

SOLUTION: Ruth, Grandpa

PROBLEM: Sentence1: Kerry enjoyed playing games on her smartphone. Sentence2: She mostly played free games that made revenue through ads. Sentence3: One day her favorite game had a major update. Sentence4: The new version had many more ads which were more intrusive in nature. Sentence5: Kerry's interest the game waned.

SOLUTION: Kerry

PROBLEM: Sentence1: Jerry went walking on a snowy day. Sentence2: He saw that a small pond was covered in ice and walked to it. Sentence3: He became curious about whether he could walk on it or not. Sentence4: Jerry began to slowly walk on the surface, but fell into the water. Sentence5: Jerry climbed out onto the ice for his life and then got away.

SOLUTION:
Jerry