Triple
T276702
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Falcon 9 |
E5264
|
entity |
| Predicate | engineTypeSecondStage |
P8436
|
FINISHED |
| Object | Merlin Vacuum |
E36032
|
NE FINISHED |
How this triple was built (3 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 9, engineTypeSecondStage, Merlin Vacuum]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Merlin Vacuum Context triple: [Falcon 9, engineTypeSecondStage, Merlin Vacuum]
-
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 surname most prominently associated with Herbert Hoover, the 31st president of the United States.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: engineTypeSecondStage Context triple: [Falcon 9, engineTypeSecondStage, Merlin Vacuum]
-
A.
firstStageEngine
Indicates that an engine functions as the primary propulsion unit used in the first stage of a multi-stage launch vehicle or rocket.
-
B.
engine
Indicates a relationship where something functions as, contains, or is driven by an engine as its source of mechanical power or propulsion.
-
C.
thrustSecondStageVacuum
Indicates the thrust produced by a rocket’s second stage when operating in a vacuum.
-
D.
notableEngineType
Indicates that an entity is particularly recognized for using or being associated with a specific type of engine.
-
E.
numberOfEngines
Indicates the quantity of engines associated with or used by an entity.
- 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_69a257e6c8788190987dfe705ca2912a |
completed | Feb. 28, 2026, 2:50 a.m. |
| NER | Named-entity recognition | batch_69a25ded68c88190b1fc595ce329aeb9 |
completed | Feb. 28, 2026, 3:15 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a394a13b688190951b070facd01d8c |
completed | March 1, 2026, 1:21 a.m. |
| PD | Predicate disambiguation | batch_69a25b7480e881909399beccfc7ffb81 |
completed | Feb. 28, 2026, 3:05 a.m. |
| PDg | Predicate description generation | batch_69a25c2d94388190aeda17ddd42b4ac9 |
completed | Feb. 28, 2026, 3:08 a.m. |
Created at: Feb. 28, 2026, 2:59 a.m.