Triple

T871441
Position Surface form Disambiguated ID Type / Status
Subject Falcon rocket family E18821 entity
Predicate usesEngine P2092 FINISHED
Object Merlin Vacuum
Merlin Vacuum is a vacuum-optimized variant of SpaceX’s Merlin rocket engine designed to efficiently power the upper stages of Falcon rockets in space.
 E36032 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: Merlin Vacuum | Statement: [Falcon rocket family, usesEngine, Merlin Vacuum]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Merlin Vacuum
Context triple: [Falcon rocket family, usesEngine, Merlin Vacuum]
  • A. Merlin 1D
    Merlin 1D is a liquid-fueled rocket engine developed by SpaceX, known for powering the first stage of the Falcon 9 launch vehicle with high thrust and reusability.
  • B. Merlin 1C
    Merlin 1C is a liquid-fueled rocket engine developed by SpaceX for use on early Falcon rockets, notable for its role in pioneering the company’s orbital launch capabilities.
  • C. Merlin 1A
    Merlin 1A is the first-generation liquid-fueled rocket engine developed by SpaceX for early Falcon 1 launches.
  • D. Dyson
    Dyson is a surname most famously associated with theoretical physicist and mathematician Freeman Dyson, known for his influential work in quantum electrodynamics and futurism.
  • E. Hoover
    Hoover is a suburban city in the Birmingham metropolitan area of central Alabama, known for its residential communities and shopping centers like the Riverchase Galleria.
  • 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: Merlin Vacuum
Triple: [Falcon rocket family, usesEngine, Merlin Vacuum]
Generated description
Merlin Vacuum is a vacuum-optimized variant of SpaceX’s Merlin rocket engine designed to efficiently power the upper stages of Falcon rockets in space.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Merlin Vacuum
Target entity description: Merlin Vacuum is a vacuum-optimized variant of SpaceX’s Merlin rocket engine designed to efficiently power the upper stages of Falcon rockets in space.
  • A. Merlin 1D chosen
    Merlin 1D is a liquid-fueled rocket engine developed by SpaceX, known for powering the first stage of the Falcon 9 launch vehicle with high thrust and reusability.
  • B. Merlin 1C
    Merlin 1C is a liquid-fueled rocket engine developed by SpaceX for use on early Falcon rockets, notable for its role in pioneering the company’s orbital launch capabilities.
  • C. Merlin 1A
    Merlin 1A is the first-generation liquid-fueled rocket engine developed by SpaceX for early Falcon 1 launches.
  • D. Dyson
    Dyson is a surname most famously associated with theoretical physicist and mathematician Freeman Dyson, known for his influential work in quantum electrodynamics and futurism.
  • E. Hoover
    Hoover is a suburban city in the Birmingham metropolitan area of central Alabama, known for its residential communities and shopping centers like the Riverchase Galleria.
  • F. None of above.

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_69a4938db1f081909bcd1ad2713b6096 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4ac96850881908a2d776685126137 completed March 1, 2026, 9:16 p.m.
NED1 Entity disambiguation (via context triple) batch_69a7b84dcf748190b20372fdc48d6766 completed March 4, 2026, 4:42 a.m.
NEDg Description generation batch_69a7b96c96e081909a126b182782ae6d completed March 4, 2026, 4:47 a.m.
NED2 Entity disambiguation (via description) batch_69a7ba44b79c8190b0ce8a430fe928e5 completed March 4, 2026, 4:51 a.m.
Created at: March 1, 2026, 7:39 p.m.