Triple
T7915651
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Portland, Maine |
E183818
|
entity |
| Predicate | hasLandmark |
P105
|
FINISHED |
| Object | Portland Observatory |
E9059
|
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: Portland Observatory | Statement: [Portland, Maine, hasLandmark, Portland Observatory]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Portland Observatory Context triple: [Portland, Maine, hasLandmark, Portland Observatory]
-
A.
Portland Observatory
chosen
The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
-
B.
Kew Observatory
Kew Observatory is a historic scientific observatory in southwest London, renowned for its 18th- and 19th-century work in astronomy, meteorology, and geomagnetism.
-
C.
Heaton Park Observatory
Heaton Park Observatory is a historic public astronomical observatory located within Manchester’s Heaton Park, used for stargazing, education, and community events.
-
D.
Coats Observatory
Coats Observatory is a historic public astronomical observatory and museum in Paisley, Scotland, known for its Victorian-era telescopes and educational exhibits.
-
E.
Royal Observatory, Greenwich
The Royal Observatory, Greenwich is a historic astronomical observatory in London best known as the location of the Prime Meridian and for its pivotal role in the development of modern navigation and timekeeping.
- 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_69ca828efbe48190bd48482650182e79 |
completed | March 30, 2026, 2:02 p.m. |
| NER | Named-entity recognition | batch_69cb3a76ae688190b068e4c92603a16d |
completed | March 31, 2026, 3:07 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cb5be54fdc81909a988114a6f30a13 |
completed | March 31, 2026, 5:30 a.m. |
Created at: March 30, 2026, 5:05 p.m.