Triple
T7829409
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | U.S. Naval Observatory Master Clock |
E181327
|
entity |
| Predicate | maintainedBy |
P86
|
FINISHED |
| Object | USNO Time Service Department |
E34411
|
NE FINISHED |
How this triple was built (2 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: USNO Time Service Department | Statement: [U.S. Naval Observatory Master Clock, maintainedBy, USNO Time Service Department]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USNO Time Service Department Context triple: [U.S. Naval Observatory Master Clock, maintainedBy, USNO Time Service Department]
-
A.
United States Naval Observatory, Washington, D.C.
chosen
The United States Naval Observatory in Washington, D.C. is a historic scientific and military facility known for its astronomical research, precise timekeeping, and role as the official residence of the U.S. vice president.
-
B.
IERS Rapid Service/Prediction Centre
The IERS Rapid Service/Prediction Centre is a specialized unit that rapidly determines and forecasts Earth orientation parameters, such as polar motion and variations in the length of day, for global geodetic and astronomical applications.
-
C.
United States Naval Observatory Flagstaff Station
The United States Naval Observatory Flagstaff Station is an astronomical observatory in Flagstaff, Arizona, operated by the U.S. Naval Observatory for high-precision astrometric and related observations.
-
D.
IERS ICRS Centre
The IERS ICRS Centre is the component of the International Earth Rotation and Reference Systems Service responsible for realizing, maintaining, and providing access to the International Celestial Reference System used for precise astronomical and geodetic measurements.
-
E.
IERS Analysis Centres
IERS Analysis Centres are specialized institutions that process geodetic and astronomical data to produce precise Earth orientation and reference frame products for the global scientific community.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca8282ccec819083c48efb72d21cf9 |
completed | March 30, 2026, 2:02 p.m. |
| NER | Named-entity recognition | batch_69cb04aaed1881908e1da129a43ef9c7 |
completed | March 30, 2026, 11:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cb14b955488190a4ce0178d84d1dc6 |
completed | March 31, 2026, 12:26 a.m. |
Created at: March 30, 2026, 4:44 p.m.