Triple

T138138
Position Surface form Disambiguated ID Type / Status
Subject Alcatraz Island E2792 entity
Predicate hasFacility P105 FINISHED
Object Alcatraz Island Lighthouse
Alcatraz Island Lighthouse is a historic beacon on Alcatraz Island in San Francisco Bay, notable as the first lighthouse built on the U.S. West Coast and a key aid to navigation for ships entering the bay.
E17238 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: Alcatraz Island Lighthouse | Statement: [Alcatraz Island, hasFacility, Alcatraz Island Lighthouse]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Alcatraz Island Lighthouse
Context triple: [Alcatraz Island, hasFacility, Alcatraz Island Lighthouse]
  • A. Great Point Light
    Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
  • B. Alcatraz Island
    Alcatraz Island is a small rocky island in San Francisco Bay best known for its former maximum-security federal prison, which once held some of America’s most notorious criminals and is now a popular historic site and tourist attraction.
  • C. Sankaty Head Light
    Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
  • D. Big Red Lighthouse
    Big Red Lighthouse is a historic, bright-red navigational beacon at the channel entrance to Lake Michigan in Holland, Michigan, and a well-known local icon.
  • E. Portland Head Light
    Portland Head Light is a historic and picturesque lighthouse located on Cape Elizabeth’s rocky coast near Portland, Maine, and is one of the most photographed lighthouses in the United States.
  • 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: Alcatraz Island Lighthouse
Triple: [Alcatraz Island, hasFacility, Alcatraz Island Lighthouse]
Generated description
Alcatraz Island Lighthouse is a historic beacon on Alcatraz Island in San Francisco Bay, notable as the first lighthouse built on the U.S. West Coast and a key aid to navigation for ships entering the bay.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Alcatraz Island Lighthouse
Target entity description: Alcatraz Island Lighthouse is a historic beacon on Alcatraz Island in San Francisco Bay, notable as the first lighthouse built on the U.S. West Coast and a key aid to navigation for ships entering the bay.
  • A. Great Point Light
    Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
  • B. Alcatraz Island
    Alcatraz Island is a small rocky island in San Francisco Bay best known for its former maximum-security federal prison, which once held some of America’s most notorious criminals and is now a popular historic site and tourist attraction.
  • C. Sankaty Head Light
    Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
  • D. Big Red Lighthouse
    Big Red Lighthouse is a historic, bright-red navigational beacon at the channel entrance to Lake Michigan in Holland, Michigan, and a well-known local icon.
  • E. Portland Head Light
    Portland Head Light is a historic and picturesque lighthouse located on Cape Elizabeth’s rocky coast near Portland, Maine, and is one of the most photographed lighthouses in the United States.
  • 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_69a2521e35c08190b28e5c9f1e3c9b59 completed Feb. 28, 2026, 2:25 a.m.
NER Named-entity recognition batch_69a257a800148190be119d1d075869b8 completed Feb. 28, 2026, 2:49 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2bf691a848190a4f6e40d9aea2168 completed Feb. 28, 2026, 10:11 a.m.
NEDg Description generation batch_69a2c1179c6c8190a118c6f4ef8d555e completed Feb. 28, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_69a2c1c769f08190b0a8b372e13fc5de completed Feb. 28, 2026, 10:21 a.m.
Created at: Feb. 28, 2026, 2:31 a.m.