Triple

T4777208
Position Surface form Disambiguated ID Type / Status
Subject Thacher Island North Tower E106079 entity
Predicate partOf P40 FINISHED
Object Thacher Island Light Station
Thacher Island Light Station is a historic dual-lighthouse complex off the coast of Rockport, Massachusetts, known for its twin granite towers that have long served as navigational aids to mariners.
 E480454 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: Thacher Island Light Station | Statement: [Thacher Island North Tower, partOf, Thacher Island Light Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Thacher Island Light Station
Context triple: [Thacher Island North Tower, partOf, Thacher Island Light Station]
  • A. Pilot Island Light
    Pilot Island Light is a historic lighthouse located on Pilot Island off the tip of Wisconsin’s Door Peninsula, long used to guide ships through the treacherous waters of Lake Michigan near Death’s Door passage.
  • B. Sand Island Light
    Sand Island Light is a historic lighthouse located on Sand Island in Lake Superior, known for guiding ships through the Apostle Islands region of Wisconsin.
  • C. Devils Island Light
    Devils Island Light is a historic lighthouse located on Devils Island in Wisconsin’s Apostle Islands, guiding ships through the waters of Lake Superior.
  • D. South Manitou Island Lighthouse
    South Manitou Island Lighthouse is a historic navigational beacon on South Manitou Island in Lake Michigan, known for guiding ships through the Manitou Passage and for its preserved 19th-century architecture.
  • E. Raspberry Island Light
    Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
  • 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: Thacher Island Light Station
Triple: [Thacher Island North Tower, partOf, Thacher Island Light Station]
Generated description
Thacher Island Light Station is a historic dual-lighthouse complex off the coast of Rockport, Massachusetts, known for its twin granite towers that have long served as navigational aids to mariners.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Thacher Island Light Station
Target entity description: Thacher Island Light Station is a historic dual-lighthouse complex off the coast of Rockport, Massachusetts, known for its twin granite towers that have long served as navigational aids to mariners.
  • A. Pilot Island Light
    Pilot Island Light is a historic lighthouse located on Pilot Island off the tip of Wisconsin’s Door Peninsula, long used to guide ships through the treacherous waters of Lake Michigan near Death’s Door passage.
  • B. Sand Island Light
    Sand Island Light is a historic lighthouse located on Sand Island in Lake Superior, known for guiding ships through the Apostle Islands region of Wisconsin.
  • C. Devils Island Light
    Devils Island Light is a historic lighthouse located on Devils Island in Wisconsin’s Apostle Islands, guiding ships through the waters of Lake Superior.
  • D. South Manitou Island Lighthouse
    South Manitou Island Lighthouse is a historic navigational beacon on South Manitou Island in Lake Michigan, known for guiding ships through the Manitou Passage and for its preserved 19th-century architecture.
  • E. Raspberry Island Light
    Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
  • 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_69bd43f3074c8190937e7b0a457fe9f1 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd65881e2c8190aa5b57759885b2bb completed March 20, 2026, 3:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69be778681e48190980996b7cf2f3b05 completed March 21, 2026, 10:48 a.m.
NEDg Description generation batch_69be7885bf60819083f6546234c1c40c completed March 21, 2026, 10:52 a.m.
NED2 Entity disambiguation (via description) batch_69be78f8baf4819097393d670d217b63 completed March 21, 2026, 10:54 a.m.
Created at: March 20, 2026, 1:21 p.m.