Triple

T508773
Position Surface form Disambiguated ID Type / Status
Subject Philadelphia, Wilmington and Baltimore Railroad E10558 entity
Predicate notableStructure P1544 FINISHED
Object Gunpowder River Bridge
The Gunpowder River Bridge is a historic railroad bridge in Maryland that carried the Philadelphia, Wilmington and Baltimore Railroad across the Gunpowder River, playing a key role in early rail travel along the Northeast Corridor.
E63392 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: Gunpowder River Bridge | Statement: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Gunpowder River Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Gunpowder River Bridge
Context triple: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Gunpowder River Bridge]
  • A. Battle of Dungan's Hill
    The Battle of Dungan's Hill was a major 1647 engagement in County Meath during the Irish Confederate Wars, where English Parliamentarian forces decisively defeated an Irish Confederate army, leading to heavy Confederate losses and weakening their position in Leinster.
  • B. Battle of the Border
    The Battle of the Border was the opening series of engagements between German and Polish forces at the start of the 1939 invasion of Poland, marking the beginning of World War II in Europe.
  • C. Battle of Heartbreak Ridge
    The Battle of Heartbreak Ridge was a protracted and costly 1951 U.S.-led United Nations offensive against entrenched North Korean and Chinese forces in the mountainous terrain of North Korea.
  • D. Battle of Resaca de la Palma
    The Battle of Resaca de la Palma was a key 1846 engagement in the Mexican–American War in which U.S. forces under General Zachary Taylor defeated Mexican troops near the Rio Grande, helping secure American control of northern Mexico.
  • E. Bloody Ridge
    Bloody Ridge is a historically significant World War II battlefield on Guadalcanal in the Solomon Islands, known for a pivotal 1942 clash between U.S. and Japanese forces.
  • 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: Gunpowder River Bridge
Triple: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Gunpowder River Bridge]
Generated description
The Gunpowder River Bridge is a historic railroad bridge in Maryland that carried the Philadelphia, Wilmington and Baltimore Railroad across the Gunpowder River, playing a key role in early rail travel along the Northeast Corridor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Gunpowder River Bridge
Target entity description: The Gunpowder River Bridge is a historic railroad bridge in Maryland that carried the Philadelphia, Wilmington and Baltimore Railroad across the Gunpowder River, playing a key role in early rail travel along the Northeast Corridor.
  • A. Battle of Dungan's Hill
    The Battle of Dungan's Hill was a major 1647 engagement in County Meath during the Irish Confederate Wars, where English Parliamentarian forces decisively defeated an Irish Confederate army, leading to heavy Confederate losses and weakening their position in Leinster.
  • B. Battle of the Border
    The Battle of the Border was the opening series of engagements between German and Polish forces at the start of the 1939 invasion of Poland, marking the beginning of World War II in Europe.
  • C. Battle of Heartbreak Ridge
    The Battle of Heartbreak Ridge was a protracted and costly 1951 U.S.-led United Nations offensive against entrenched North Korean and Chinese forces in the mountainous terrain of North Korea.
  • D. Battle of Resaca de la Palma
    The Battle of Resaca de la Palma was a key 1846 engagement in the Mexican–American War in which U.S. forces under General Zachary Taylor defeated Mexican troops near the Rio Grande, helping secure American control of northern Mexico.
  • E. Bloody Ridge
    Bloody Ridge is a historically significant World War II battlefield on Guadalcanal in the Solomon Islands, known for a pivotal 1942 clash between U.S. and Japanese forces.
  • 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_69a2e848adf881908e5e04f7af030093 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f162f3888190b057ad04e40a30e2 completed Feb. 28, 2026, 1:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69a498506418819090190a35e8763982 completed March 1, 2026, 7:49 p.m.
NEDg Description generation batch_69a499da231c8190abd973d9ac3969ff completed March 1, 2026, 7:56 p.m.
NED2 Entity disambiguation (via description) batch_69a49b0045b481908f5e863d61b7e17e completed March 1, 2026, 8:01 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.