Triple
T12216654
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Friedrich Georg Wilhelm von Struve |
E291102
|
entity |
| Predicate | notableWork |
P4
|
FINISHED |
| Object |
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.
|
E970547
|
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: geodetic survey of the Struve Geodetic Arc | Statement: [Friedrich Georg Wilhelm von Struve, notableWork, geodetic survey of the Struve Geodetic Arc]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: geodetic survey of the Struve Geodetic Arc Context triple: [Friedrich Georg Wilhelm von Struve, notableWork, geodetic survey of the Struve Geodetic Arc]
-
A.
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.
-
B.
French Geodesic Mission to Lapland
The French Geodesic Mission to Lapland was an 18th-century scientific expedition that measured a meridian arc near the Arctic Circle to test the Earth's shape and confirm Newton's theory of an oblate spheroid.
-
C.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
-
D.
Curve of the Earth
Curve of the Earth is an indie rock album by the English band Mystery Jets, noted for its atmospheric sound and introspective songwriting.
-
E.
Geographia
Geographia is an influential ancient geographical treatise by Claudius Ptolemy that systematically mapped the known world and shaped cartography for centuries.
- 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: geodetic survey of the Struve Geodetic Arc Triple: [Friedrich Georg Wilhelm von Struve, notableWork, geodetic survey of the Struve Geodetic Arc]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: geodetic survey of the Struve Geodetic Arc Target entity description: 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.
-
A.
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.
-
B.
French Geodesic Mission to Lapland
The French Geodesic Mission to Lapland was an 18th-century scientific expedition that measured a meridian arc near the Arctic Circle to test the Earth's shape and confirm Newton's theory of an oblate spheroid.
-
C.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
-
D.
Curve of the Earth
Curve of the Earth is an indie rock album by the English band Mystery Jets, noted for its atmospheric sound and introspective songwriting.
-
E.
Geographia
Geographia is an influential ancient geographical treatise by Claudius Ptolemy that systematically mapped the known world and shaped cartography for centuries.
- 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_69d6ab65923081909acfc61b7a612233 |
completed | April 8, 2026, 7:24 p.m. |
| NER | Named-entity recognition | batch_69d91c9419d48190b0037fe8edc681c4 |
completed | April 10, 2026, 3:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f60aa31f548190bd4f8cfe3c55614b |
completed | May 2, 2026, 2:30 p.m. |
| NEDg | Description generation | batch_69f60dbe4f788190a3b4be4b31cfbffa |
completed | May 2, 2026, 2:44 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f60ee037bc8190be486e30e03031a7 |
completed | May 2, 2026, 2:49 p.m. |
Created at: April 8, 2026, 9:51 p.m.