Triple

T9064600
Position Surface form Disambiguated ID Type / Status
Subject Frederick Douglass Memorial Bridge (southern landing) E217212 entity
Predicate crossesTo P29049 FINISHED
Object Frederick Douglass Memorial Bridge (northern landing) E394215 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: Frederick Douglass Memorial Bridge (northern landing) | Statement: [Frederick Douglass Memorial Bridge (southern landing), crossesTo, Frederick Douglass Memorial Bridge (northern landing)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Frederick Douglass Memorial Bridge (northern landing)
Context triple: [Frederick Douglass Memorial Bridge (southern landing), crossesTo, Frederick Douglass Memorial Bridge (northern landing)]
  • A. Frederick Douglass Memorial Bridge (southern landing)
    The Frederick Douglass Memorial Bridge (southern landing) is the portion of the major Anacostia River crossing where the bridge connects into Southeast Washington, D.C., linking the span to nearby neighborhoods and roadways.
  • B. Frederick Douglass Memorial Bridge chosen
    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.
  • C. Longfellow Bridge
    Longfellow Bridge is a historic steel and granite bridge in Boston, Massachusetts, known for carrying road and rail traffic between Boston and Cambridge across the Charles River.
  • D. Seaport Boulevard Bridge
    The Seaport Boulevard Bridge is a major roadway bridge in Boston, Massachusetts, carrying Seaport Boulevard across Fort Point Channel to connect downtown with the Seaport District.
  • E. Rochambeau Memorial Bridge
    The Rochambeau Memorial Bridge is a major highway bridge carrying Interstate 395 across the Potomac River into Washington, D.C.
  • 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_69ca83d5a7f48190b16c1e59bd43ede0 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cc94bb26588190b7d6f2d70819e86f completed April 1, 2026, 3:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69d01798a79081909885a8e61bf04dc3 completed April 3, 2026, 7:40 p.m.
Created at: March 30, 2026, 7:11 p.m.