Triple

T8055414
Position Surface form Disambiguated ID Type / Status
Subject Merlin 1D sea-level E187985 entity
Predicate predecessor P97 FINISHED
Object Merlin 1C sea-level
Merlin 1C sea-level is an earlier sea-level variant of SpaceX’s Merlin rocket engine, used on initial Falcon 9 launches before being succeeded by the Merlin 1D.
 E707032 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 1C sea-level | Statement: [Merlin 1D sea-level, predecessor, Merlin 1C sea-level]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Merlin 1C sea-level
Context triple: [Merlin 1D sea-level, predecessor, Merlin 1C sea-level]
  • A. Merlin 1D sea-level
    Merlin 1D sea-level is the atmospheric-optimized version of SpaceX’s Merlin 1D rocket engine, used on the Falcon 9 first stage to provide high thrust and efficiency during liftoff and ascent.
  • B. NEPTUNE observatory
    NEPTUNE observatory is a large cabled ocean observatory off Canada’s Pacific coast that provides continuous, real-time monitoring of seafloor and ocean processes for scientific research.
  • C. Aqua satellite
    Aqua is a NASA Earth observation satellite focused on studying the planet’s water cycle, including oceans, atmosphere, and ice.
  • D. NASA Sentinel-6 Michael Freilich
    NASA Sentinel-6 Michael Freilich is an oceanography satellite mission dedicated to precisely measuring global sea level and monitoring changes in Earth’s oceans and climate.
  • E. Halley II
    Halley II was an early British Antarctic research station on the Brunt Ice Shelf, used primarily for geophysical and atmospheric science studies.
  • 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 1C sea-level
Triple: [Merlin 1D sea-level, predecessor, Merlin 1C sea-level]
Generated description
Merlin 1C sea-level is an earlier sea-level variant of SpaceX’s Merlin rocket engine, used on initial Falcon 9 launches before being succeeded by the Merlin 1D.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Merlin 1C sea-level
Target entity description: Merlin 1C sea-level is an earlier sea-level variant of SpaceX’s Merlin rocket engine, used on initial Falcon 9 launches before being succeeded by the Merlin 1D.
  • A. Merlin 1D sea-level
    Merlin 1D sea-level is the atmospheric-optimized version of SpaceX’s Merlin 1D rocket engine, used on the Falcon 9 first stage to provide high thrust and efficiency during liftoff and ascent.
  • B. NEPTUNE observatory
    NEPTUNE observatory is a large cabled ocean observatory off Canada’s Pacific coast that provides continuous, real-time monitoring of seafloor and ocean processes for scientific research.
  • C. Aqua satellite
    Aqua is a NASA Earth observation satellite focused on studying the planet’s water cycle, including oceans, atmosphere, and ice.
  • D. NASA Sentinel-6 Michael Freilich
    NASA Sentinel-6 Michael Freilich is an oceanography satellite mission dedicated to precisely measuring global sea level and monitoring changes in Earth’s oceans and climate.
  • E. Halley II
    Halley II was an early British Antarctic research station on the Brunt Ice Shelf, used primarily for geophysical and atmospheric science studies.
  • 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_69ca82b2f68881908c50560697e210da completed March 30, 2026, 2:03 p.m.
NER Named-entity recognition batch_69cb3fa16804819094926ff2ff053c80 completed March 31, 2026, 3:29 a.m.
NED1 Entity disambiguation (via context triple) batch_69cc5725c5308190b2eb565902124b10 completed March 31, 2026, 11:22 p.m.
NEDg Description generation batch_69cc58ae255c8190a6a2d2f335c6cc3f completed March 31, 2026, 11:28 p.m.
NED2 Entity disambiguation (via description) batch_69cc5cd22b188190b8a31e8e8ac8b98d completed March 31, 2026, 11:46 p.m.
Created at: March 30, 2026, 5:25 p.m.