Triple

T2600
Position Surface form Disambiguated ID Type / Status
Subject Cambridge, Massachusetts E48 entity
Predicate hasLandmark P105 FINISHED
Object Longfellow House–Washington's Headquarters National Historic Site
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.
E2861 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: Longfellow House–Washington's Headquarters National Historic Site | Statement: [Cambridge, Massachusetts, hasLandmark, Longfellow House–Washington's Headquarters National Historic Site]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Longfellow House–Washington's Headquarters National Historic Site
Context triple: [Cambridge, Massachusetts, hasLandmark, Longfellow House–Washington's Headquarters National Historic Site]
  • A. Independence National Historical Park
    Independence National Historical Park is a historic district in Philadelphia that preserves key sites associated with the American Revolution and the founding of the United States, including Independence Hall and the Liberty Bell.
  • B. Independence Hall
    Independence Hall is a historic building in Philadelphia best known as the site where both the Declaration of Independence and the United States Constitution were debated and adopted.
  • C. Jefferson Memorial
    The Jefferson Memorial is a neoclassical monument in Washington, D.C., dedicated to Thomas Jefferson, the third U.S. president and principal author of the Declaration of Independence.
  • D. Vanderbilt Mansion National Historic Site
    Vanderbilt Mansion National Historic Site is a preserved Gilded Age estate and grand Beaux-Arts mansion along the Hudson River that showcases the opulent lifestyle of the Vanderbilt family.
  • E. Lincoln Memorial
    The Lincoln Memorial is a monumental neoclassical temple in Washington, D.C., honoring the 16th U.S. president, Abraham Lincoln, and serving as a symbolic site for American civil rights and national unity.
  • 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: Longfellow House–Washington's Headquarters National Historic Site
Triple: [Cambridge, Massachusetts, hasLandmark, Longfellow House–Washington's Headquarters National Historic Site]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Longfellow House–Washington's Headquarters National Historic Site
Target entity description: 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.
  • A. Independence National Historical Park
    Independence National Historical Park is a historic district in Philadelphia that preserves key sites associated with the American Revolution and the founding of the United States, including Independence Hall and the Liberty Bell.
  • B. Independence Hall
    Independence Hall is a historic building in Philadelphia best known as the site where both the Declaration of Independence and the United States Constitution were debated and adopted.
  • C. Jefferson Memorial
    The Jefferson Memorial is a neoclassical monument in Washington, D.C., dedicated to Thomas Jefferson, the third U.S. president and principal author of the Declaration of Independence.
  • D. Vanderbilt Mansion National Historic Site
    Vanderbilt Mansion National Historic Site is a preserved Gilded Age estate and grand Beaux-Arts mansion along the Hudson River that showcases the opulent lifestyle of the Vanderbilt family.
  • E. Lincoln Memorial
    The Lincoln Memorial is a monumental neoclassical temple in Washington, D.C., honoring the 16th U.S. president, Abraham Lincoln, and serving as a symbolic site for American civil rights and national unity.
  • 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_69a22e0d37588190897cf37a323013f5 completed Feb. 27, 2026, 11:51 p.m.
NER Named-entity recognition batch_69a232e673a881909276dbf9c37bbff6 completed Feb. 28, 2026, 12:12 a.m.
NED1 Entity disambiguation (via context triple) batch_69a24e51246c819098f53258d869ecde completed Feb. 28, 2026, 2:09 a.m.
NEDg Description generation batch_69a250b213c881909381abc66f5ebe68 completed Feb. 28, 2026, 2:19 a.m.
NED2 Entity disambiguation (via description) batch_69a2515b915c8190b122de0025bd954f completed Feb. 28, 2026, 2:22 a.m.
Created at: Feb. 27, 2026, 11:55 p.m.