Triple

T4832780
Position Surface form Disambiguated ID Type / Status
Subject Potomac River crossings toward Washington, D.C. E107981 entity
Predicate hasComponent P35 FINISHED
Object 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.
 E496394 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: Chain Bridge (Potomac River) | Statement: [Potomac River crossings toward Washington, D.C., hasComponent, Chain Bridge (Potomac River)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chain Bridge (Potomac River)
Context triple: [Potomac River crossings toward Washington, D.C., hasComponent, Chain Bridge (Potomac River)]
  • A. Arlington Memorial Bridge
    Arlington Memorial Bridge is a historic Neoclassical span across the Potomac River in Washington, D.C., symbolically linking the Lincoln Memorial with Arlington National Cemetery.
  • B. Union Bridge, Maryland
    Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
  • C. Frederick Douglass Memorial Bridge
    The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
  • D. Chesapeake Bay Bridge
    The Chesapeake Bay Bridge is a major dual-span suspension bridge in Maryland that carries U.S. Route 50/301 across the Chesapeake Bay, linking Maryland’s eastern and western shores.
  • E. Sagadahoc Bridge
    The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
  • 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: Chain Bridge (Potomac River)
Triple: [Potomac River crossings toward Washington, D.C., hasComponent, Chain Bridge (Potomac River)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chain Bridge (Potomac River)
Target entity description: 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.
  • A. Arlington Memorial Bridge
    Arlington Memorial Bridge is a historic Neoclassical span across the Potomac River in Washington, D.C., symbolically linking the Lincoln Memorial with Arlington National Cemetery.
  • B. Union Bridge, Maryland
    Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
  • C. Frederick Douglass Memorial Bridge
    The Frederick Douglass Memorial Bridge is a major vehicular and pedestrian bridge in Washington, D.C., named in honor of abolitionist Frederick Douglass and serving as a key gateway into the city.
  • D. Chesapeake Bay Bridge
    The Chesapeake Bay Bridge is a major dual-span suspension bridge in Maryland that carries U.S. Route 50/301 across the Chesapeake Bay, linking Maryland’s eastern and western shores.
  • E. Sagadahoc Bridge
    The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
  • 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_69bd43fbe444819085cb970706ef73f7 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6cca88d88190a8ad6cf7856bdf69 completed March 20, 2026, 3:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69bec342e4788190ad9bb12e54b6a4ed completed March 21, 2026, 4:11 p.m.
NEDg Description generation batch_69bec505a5dc81908f79c1ade107c4ce completed March 21, 2026, 4:19 p.m.
NED2 Entity disambiguation (via description) batch_69bec654fc4881909bf5458cdafc7ffd completed March 21, 2026, 4:24 p.m.
Created at: March 20, 2026, 1:24 p.m.