Triple

T20095756
Position Surface form Disambiguated ID Type / Status
Subject Chain Bridge (Potomac River) E496394 entity
Predicate situatedUpstreamOf P63897 FINISHED
Object Key Bridge (Potomac River) NE NERFINISHED

How this triple was built (3 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: Key Bridge (Potomac River) | Statement: [Chain Bridge (Potomac River), situatedUpstreamOf, Key Bridge (Potomac River)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Key Bridge (Potomac River)
Context triple: [Chain Bridge (Potomac River), situatedUpstreamOf, Key Bridge (Potomac River)]
  • A. Chain Bridge (Potomac River)
    Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
  • B. Severn River Bridge
    The Severn River Bridge is a major roadway bridge in Maryland that carries U.S. Route 50/301 across the Severn River near Annapolis, serving as a key transportation link between the Baltimore–Washington area and Maryland’s Eastern Shore.
  • C. Union Bridge, Maryland
    Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
  • D. Cabin John Bridge
    Cabin John Bridge is a historic stone arch bridge in Maryland that carries traffic across Cabin John Creek near the Potomac River just outside Washington, D.C.
  • E. Powhite Parkway Bridge
    The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Key Bridge (Potomac River)
Target entity description: Key Bridge (Potomac River) is a historic arched bridge in Washington, D.C., carrying U.S. Route 29 across the Potomac River between Georgetown and Arlington.
  • A. Chain Bridge (Potomac River)
    Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
  • B. Severn River Bridge
    The Severn River Bridge is a major roadway bridge in Maryland that carries U.S. Route 50/301 across the Severn River near Annapolis, serving as a key transportation link between the Baltimore–Washington area and Maryland’s Eastern Shore.
  • C. Union Bridge, Maryland
    Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
  • D. Cabin John Bridge
    Cabin John Bridge is a historic stone arch bridge in Maryland that carries traffic across Cabin John Creek near the Potomac River just outside Washington, D.C.
  • E. Powhite Parkway Bridge
    The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
  • F. None of above. chosen

Provenance (2 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_69da626eee3881909f3454986d4a6511 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e6666cc02481908780a415b19c05a2 completed April 20, 2026, 5:46 p.m.
Created at: April 11, 2026, 11:24 p.m.