Triple

T2184512

Position	Surface form	Disambiguated ID	Type / Status
Subject	International Earth Rotation and Reference Systems Service	`E49119`	entity
Predicate	maintains	`P1580`	FINISHED
Object	International Terrestrial Reference System The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.	`E242103`	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: International Terrestrial Reference System | Statement: [International Earth Rotation and Reference Systems Service, maintains, International Terrestrial Reference System]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: International Terrestrial Reference System
Context triple: [International Earth Rotation and Reference Systems Service, maintains, International Terrestrial Reference System]

A. International Earth Rotation and Reference Systems Service
The International Earth Rotation and Reference Systems Service (IERS) is an international organization that monitors Earth's rotation and maintains global reference systems used for precise timekeeping, navigation, and geodesy.
B. National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
C. WGS84
WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
D. Terrestrial Time
Terrestrial Time is a modern astronomical time standard used for precise calculations of planetary motion and ephemerides, defined in relation to atomic time rather than Earth's rotation.
E. International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
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: International Terrestrial Reference System
Triple: [International Earth Rotation and Reference Systems Service, maintains, International Terrestrial Reference System]

Generated description

The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: International Terrestrial Reference System
Target entity description: The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.

A. International Earth Rotation and Reference Systems Service
The International Earth Rotation and Reference Systems Service (IERS) is an international organization that monitors Earth's rotation and maintains global reference systems used for precise timekeeping, navigation, and geodesy.
B. National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
C. WGS84
WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
D. Terrestrial Time
Terrestrial Time is a modern astronomical time standard used for precise calculations of planetary motion and ephemerides, defined in relation to atomic time rather than Earth's rotation.
E. International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
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_69a88aa72d348190a9544bb5b8a4e71d`	completed	March 4, 2026, 7:40 p.m.
NER	Named-entity recognition	`batch_69abbf0e92248190a9449fce4044438a`	completed	March 7, 2026, 6 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69ae5da963308190bcd0918b8317b3f6`	completed	March 9, 2026, 5:42 a.m.
NEDg	Description generation	`batch_69ae5e3197f08190b6dc37797e4e2ffd`	completed	March 9, 2026, 5:44 a.m.
NED2	Entity disambiguation (via description)	`batch_69ae5ea880988190a5c57641da6bc80b`	completed	March 9, 2026, 5:46 a.m.

Created at: March 4, 2026, 7:45 p.m.