Triple

T1202863
Position Surface form Disambiguated ID Type / Status
Subject Cambridge city center E25820 entity
Predicate hasLandmark P105 FINISHED
Object Longfellow House–Washington's Headquarters National Historic Site vicinity E2861 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: Longfellow House–Washington's Headquarters National Historic Site vicinity | Statement: [Cambridge city center, hasLandmark, Longfellow House–Washington's Headquarters National Historic Site vicinity]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Longfellow House–Washington's Headquarters National Historic Site vicinity
Context triple: [Cambridge city center, hasLandmark, Longfellow House–Washington's Headquarters National Historic Site vicinity]
  • A. Longfellow House–Washington's Headquarters National Historic Site chosen
    Longfellow House–Washington's Headquarters National Historic Site is a historic house in Cambridge, Massachusetts, that served both as George Washington’s Revolutionary War headquarters and later as the home of poet Henry Wadsworth Longfellow.
  • B. Lowell National Historical Park
    Lowell National Historical Park is a U.S. national historical park that preserves and interprets the 19th-century textile mills, canals, and industrial heritage of Lowell, Massachusetts.
  • C. Washington's Headquarters State Historic Site
    Washington's Headquarters State Historic Site is a preserved Revolutionary War landmark in Newburgh, New York, where General George Washington maintained his headquarters near the end of the conflict.
  • D. Boston National Historical Park
    Boston National Historical Park is a collection of historically significant sites in Boston, Massachusetts, that commemorate key events and locations from the American Revolution and early United States history.
  • E. Wadsworth-Longfellow House
    The Wadsworth-Longfellow House is a historic 18th-century home and museum best known as the childhood residence of American poet Henry Wadsworth Longfellow.
  • 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_69a4942b30f08190a91c60573e16b5ef completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bdbda0b081909c0147121a945e27 completed March 1, 2026, 10:29 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac7f3a48d48190ae5179312b52b3ee completed March 7, 2026, 7:40 p.m.
Created at: March 1, 2026, 7:46 p.m.