Triple
T1491881
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Old Mackinac Point Lighthouse |
E29596
|
entity |
| Predicate | operatorHistory |
P28596
|
FINISHED |
| Object | United States Lighthouse Service |
E12619
|
NE FINISHED |
How this triple was built (3 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: United States Lighthouse Service | Statement: [Old Mackinac Point Lighthouse, operatorHistory, United States Lighthouse Service]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: United States Lighthouse Service Context triple: [Old Mackinac Point Lighthouse, operatorHistory, United States Lighthouse Service]
-
A.
United States Lighthouse Service
chosen
The United States Lighthouse Service was a former U.S. federal agency responsible for the construction, maintenance, and operation of lighthouses and other navigational aids before its functions were absorbed into the Coast Guard.
-
B.
United States Lighthouse Board
The United States Lighthouse Board was a 19th-century federal agency that modernized and oversaw the construction, maintenance, and operation of lighthouses and other navigational aids along U.S. coasts and waterways.
-
C.
United States Life-Saving Service
The United States Life-Saving Service was a federal agency that operated coastal rescue stations and crews dedicated to saving lives and ships in distress along U.S. shorelines in the 19th and early 20th centuries.
-
D.
United States Hydrographic Office
The United States Hydrographic Office was a U.S. Navy agency responsible for producing nautical charts, sailing directions, and other navigational publications to support safe maritime navigation.
-
E.
United States Revenue Cutter Service
The United States Revenue Cutter Service was a maritime law enforcement and rescue service of the U.S. Treasury Department that operated from 1790 until it became a founding component of the modern United States Coast Guard.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: operatorHistory Context triple: [Old Mackinac Point Lighthouse, operatorHistory, United States Lighthouse Service]
-
A.
ownershipHistory
Indicates the sequence of past and present owners associated with an entity over time.
-
B.
upgradeHistory
Indicates the record of changes where one version, state, or configuration has been replaced or improved by another over time.
-
C.
viewedHistoryAs
Indicates that one entity has examined or interpreted another entity as a historical record or in the context of its past events.
-
D.
subsequentHistory
Indicates that one event, state, or record occurs or is recorded after another in time, reflecting its later historical development or outcome.
-
E.
historicalExport
Indicates that an entity was exported from one place to another during a past or historically significant period.
- 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_69a498da82e08190ba833330d05f380f |
completed | March 1, 2026, 7:51 p.m. |
| NER | Named-entity recognition | batch_69a4c6c3ace4819081bc2b86ee2486b6 |
completed | March 1, 2026, 11:07 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad1ca98e64819097916eb7717e6364 |
completed | March 8, 2026, 6:52 a.m. |
| PD | Predicate disambiguation | batch_69a4c48902808190a8028d359bcf123e |
completed | March 1, 2026, 10:58 p.m. |
| PDg | Predicate description generation | batch_69a4c52c703c8190a56389b09d97659f |
completed | March 1, 2026, 11:01 p.m. |
Created at: March 1, 2026, 8:12 p.m.