Triple

T7207539
Position Surface form Disambiguated ID Type / Status
Subject École Polytechnique massacre E148704 entity
Predicate perpetrator P698 FINISHED
Object Marc Lépine
Marc Lépine was a Canadian mass murderer who killed 14 women in the 1989 antifeminist attack at Montreal’s École Polytechnique.
E648893 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: Marc Lépine | Statement: [École Polytechnique massacre, perpetrator, Marc Lépine]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Marc Lépine
Context triple: [École Polytechnique massacre, perpetrator, Marc Lépine]
  • A. Stanislas Lépine
    Stanislas Lépine was a 19th-century French painter known for his quiet, atmospheric urban and river landscapes of Paris, often associated with the Impressionist movement.
  • B. Christian Lépine
    Christian Lépine is a Canadian Roman Catholic prelate who serves as the Archbishop of Montreal.
  • C. Guy Gendron
    Guy Gendron was a Canadian professional ice hockey left winger who played in the NHL during the 1950s and 1960s, notably with teams such as the New York Rangers and Boston Bruins.
  • D. Camille Guaty
    Camille Guaty is an American actress known for her roles in television series such as "Prison Break," "Las Vegas," and "Scorpion," as well as various film and TV movie appearances.
  • E. Missak Manouchian
    Missak Manouchian was an Armenian-born poet, communist, and leader of a group of immigrant fighters in the French Resistance who became a symbol of anti-Nazi struggle after his execution in 1944.
  • 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: Marc Lépine
Triple: [École Polytechnique massacre, perpetrator, Marc Lépine]
Generated description
Marc Lépine was a Canadian mass murderer who killed 14 women in the 1989 antifeminist attack at Montreal’s École Polytechnique.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Marc Lépine
Target entity description: Marc Lépine was a Canadian mass murderer who killed 14 women in the 1989 antifeminist attack at Montreal’s École Polytechnique.
  • A. Stanislas Lépine
    Stanislas Lépine was a 19th-century French painter known for his quiet, atmospheric urban and river landscapes of Paris, often associated with the Impressionist movement.
  • B. Christian Lépine
    Christian Lépine is a Canadian Roman Catholic prelate who serves as the Archbishop of Montreal.
  • C. Guy Gendron
    Guy Gendron was a Canadian professional ice hockey left winger who played in the NHL during the 1950s and 1960s, notably with teams such as the New York Rangers and Boston Bruins.
  • D. Camille Guaty
    Camille Guaty is an American actress known for her roles in television series such as "Prison Break," "Las Vegas," and "Scorpion," as well as various film and TV movie appearances.
  • E. Missak Manouchian
    Missak Manouchian was an Armenian-born poet, communist, and leader of a group of immigrant fighters in the French Resistance who became a symbol of anti-Nazi struggle after his execution in 1944.
  • 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_69c687e8cf188190b5f3ecffd681f04e completed March 27, 2026, 1:36 p.m.
NER Named-entity recognition batch_69c6e969c5fc819096bc03bfba12d0cf completed March 27, 2026, 8:32 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7bfc4e6688190ad9e0d31505e65af completed March 28, 2026, 11:47 a.m.
NEDg Description generation batch_69c7c05a1f548190914a9b2ba98cbef2 completed March 28, 2026, 11:49 a.m.
NED2 Entity disambiguation (via description) batch_69c7c0e6b508819093092e3516a9ec46 completed March 28, 2026, 11:52 a.m.
Created at: March 27, 2026, 2:52 p.m.