Triple
T15244022
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Meridian Column |
E364331
|
entity |
| Predicate | heritageDesignation |
P623
|
FINISHED |
| Object | Struve Geodetic Arc World Heritage Site |
E970545
|
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: Struve Geodetic Arc World Heritage Site | Statement: [Meridian Column, heritageDesignation, Struve Geodetic Arc World Heritage Site]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Struve Geodetic Arc World Heritage Site Context triple: [Meridian Column, heritageDesignation, Struve Geodetic Arc World Heritage Site]
-
A.
Struve Geodetic Arc
chosen
The Struve Geodetic Arc is a chain of survey triangulation points stretching from Norway to the Black Sea, established in the 19th century to measure the exact size and shape of the Earth and now recognized as a UNESCO World Heritage Site.
-
B.
UNESCO World Heritage listing of Struve Geodetic Arc
The UNESCO World Heritage listing of the Struve Geodetic Arc recognizes a chain of 19th-century survey triangulation points across ten countries that was crucial in accurately measuring the size and shape of the Earth.
-
C.
geodetic survey of the Struve Geodetic Arc
The geodetic survey of the Struve Geodetic Arc was a 19th-century multinational triangulation project that precisely measured a meridian arc across Northern Europe to determine the size and shape of the Earth.
-
D.
Cassini meridian line
The Cassini meridian line is a monumental 17th-century astronomical sundial and meridian marker in Bologna used to measure the Sun’s position and refine the length of the year.
-
E.
Laponia World Heritage Site
Laponia World Heritage Site is a vast cultural and natural landscape in northern Sweden recognized by UNESCO for its outstanding Arctic ecosystems and the traditional reindeer-herding culture of the Sámi people.
- 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_69d85a0dde7481908fc64d1e82d5d20d |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e007f306f08190be448b215d6c9b6c |
completed | April 15, 2026, 9:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fee5f184d481909eb4294ee3648226 |
completed | May 9, 2026, 7:44 a.m. |
Created at: April 10, 2026, 3:13 a.m.