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.

Example Input: Sentence1: Gina went for a walk near her home. Sentence2: At the end of the walkway was an orange construction sign. Sentence3: Gina walked over to see what the sign said. Sentence4: The sign stated a major street would be closing for repairs. Sentence5: It would be inconvenient, but Gina hoped it would at least be quick.
Example Output: Gina

Example Input: Sentence1: Ana and her friends liked playing basketball together. Sentence2: They'd play every Saturday at a somewhat isolated court. Sentence3: When they arrived for their weekend game, the court was gone! Sentence4: The town had torn it up because they thought no one used it. Sentence5: In its place the town had put a playground with swing sets instead.
Example Output: Town, Friends, Ana

Example Input: Sentence1: A friend went to get a tattoo. Sentence2: The tattoo artist had a cold, but was wearing gloves. Sentence3: While he was giving the tat, he sneezed loudly and harshly. Sentence4: Soon I realized he had scribbled on my friend, because of the sneeze! Sentence5: My friend was so livid, he demanded the tattoo be free.
Example Output:
I (myself), A friend, Tattoo artist