Analyze the following extract taken from a document and extract key topics.
- Topics only worth remembering.
- Be brief. Short phrases.
- Can use broken English.
- Conciseness is very important.
- Topics can include names of memories you want to recall.
- NO LONG SENTENCES. SHORT PHRASES.
- Return in JSON
[Input]
My name is Macbeth. I used to be King of Scotland, but I died. My wife's name is Lady Macbeth and we were married for 15 years. We had no children. Our beloved dog Toby McDuff was a famous hunter of rats in the forest.
My tragic story was immortalized by Shakespeare in a play.
[Output]
{
  "topics": [
    "Macbeth",
    "King of Scotland",
    "Lady Macbeth",
    "Dog",
    "Toby McDuff",
    "Shakespeare",
    "Play",
    "Tragedy"
  ]
}
+++++
[Input]
{{$input}}
[Output]