Triple
T7509605
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Thacher Island Twin Lights |
E177483
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | lighthouse station |
C19124
|
CONCEPT FINISHED |
How this triple was built (1 step)
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.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: lighthouse station Context triple: [Thacher Island Twin Lights, instanceOf, lighthouse station]
-
A.
coastal lighthouse
chosen
A coastal lighthouse is a tall, often cylindrical structure built along shorelines to emit a guiding light and navigational signals that warn ships of hazards and help them safely navigate coastal waters.
-
B.
ornamental lighthouse
An ornamental lighthouse is a decorative structure or object, often miniature or stylized, designed to aesthetically evoke the form and symbolism of a real lighthouse without serving a functional navigational purpose.
-
C.
former lighthouse
A former lighthouse is a decommissioned navigational tower, once used to guide maritime traffic with its beacon, that has since been repurposed or left as a historical coastal landmark.
-
D.
cast-iron lighthouse
A cast-iron lighthouse is a navigational tower constructed primarily from prefabricated cast-iron plates or segments, designed to withstand harsh marine environments while housing a light to guide vessels safely.
-
E.
screw-pile lighthouse
A screw-pile lighthouse is a type of lighthouse built on piles with helical screw bases that are screwed into the seabed, providing a stable foundation in soft or sandy bottoms, typically in shallow coastal waters.
- F. None of above.
Provenance (1 batch)
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_69c69f276b108190af2cc790b6554544 |
completed | March 27, 2026, 3:15 p.m. |
Created at: March 27, 2026, 3:45 p.m.