Triple

T9799635
Position Surface form Disambiguated ID Type / Status
Subject Robert Chambers (Preppy Killer) E237802 entity
Predicate alias P39 FINISHED
Object Preppy Killer
Preppy Killer is the media nickname given to Robert Chambers, an American man whose 1986 killing of Jennifer Levin in New York City became a highly publicized and controversial case.
 E821232 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Preppy Killer | Statement: [Robert Chambers (Preppy Killer), alias, Preppy Killer]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Preppy Killer
Context triple: [Robert Chambers (Preppy Killer), alias, Preppy Killer]
  • A. Killer Women
    Killer Women is an American crime drama television series that follows a tough female Texas Ranger as she investigates cases involving women accused of murder.
  • B. Great Kills
    Great Kills is a residential neighborhood on Staten Island’s South Shore known for its marina, waterfront parks, and suburban character.
  • C. Live Killers
    Live Killers is a 1979 live album by the British rock band Queen, compiled from performances on their European Jazz Tour and known for capturing the band's energetic stage presence.
  • D. The Capital Punisher
    The Capital Punisher is the nickname of Frank Howard, a towering power-hitting Major League Baseball slugger best known for his time with the Washington Senators in the 1960s and early 1970s.
  • E. Killer’s Kiss
    Killer’s Kiss is a 1955 low-budget film noir drama and one of Stanley Kubrick’s early feature films, noted for its gritty New York City setting and experimental visual style.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Preppy Killer
Triple: [Robert Chambers (Preppy Killer), alias, Preppy Killer]
Generated description
Preppy Killer is the media nickname given to Robert Chambers, an American man whose 1986 killing of Jennifer Levin in New York City became a highly publicized and controversial case.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Preppy Killer
Target entity description: Preppy Killer is the media nickname given to Robert Chambers, an American man whose 1986 killing of Jennifer Levin in New York City became a highly publicized and controversial case.
  • A. Killer Women
    Killer Women is an American crime drama television series that follows a tough female Texas Ranger as she investigates cases involving women accused of murder.
  • B. Great Kills
    Great Kills is a residential neighborhood on Staten Island’s South Shore known for its marina, waterfront parks, and suburban character.
  • C. Live Killers
    Live Killers is a 1979 live album by the British rock band Queen, compiled from performances on their European Jazz Tour and known for capturing the band's energetic stage presence.
  • D. The Capital Punisher
    The Capital Punisher is the nickname of Frank Howard, a towering power-hitting Major League Baseball slugger best known for his time with the Washington Senators in the 1960s and early 1970s.
  • E. Killer’s Kiss
    Killer’s Kiss is a 1955 low-budget film noir drama and one of Stanley Kubrick’s early feature films, noted for its gritty New York City setting and experimental visual style.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ca84dd4608819097ff4ed00feca280 completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cda628fe0081909d2fbac3bd56ee84 completed April 1, 2026, 11:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69d1c445c81481908700ffde5dd28936 completed April 5, 2026, 2:09 a.m.
NEDg Description generation batch_69d1c4c37e248190a1b10cf6d0056c02 completed April 5, 2026, 2:11 a.m.
NED2 Entity disambiguation (via description) batch_69d1c56957f8819080eca0a71c24f86a completed April 5, 2026, 2:14 a.m.
Created at: March 30, 2026, 8:28 p.m.