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: Tim was brushing his teeth one morning. Sentence2: Tim noticed he was almost out of toothpaste. Sentence3: Tim decided to go to the store for more. Sentence4: Tim saw natural toothpaste. Sentence5: Tim tried natural toothpaste for the first time.
[A]: Tim

[Q]: Sentence1: It was early December. Sentence2: My mom had been fighting cancer. Sentence3: She knew her time was near. Sentence4: She promised she would look after me in heaven. Sentence5: She died in her sleep.
[A]: I (myself), My mom

[Q]: Sentence1: Amy started doing drugs at 16. Sentence2: She tried very many drugs and was hooked on heroin. Sentence3: She did heroin for 4 years before she got sick. Sentence4: She lost a lot of weight. Sentence5: She died because of the drugs.
[A]:
Amy