Triple
T4832782
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Potomac River crossings toward Washington, D.C. |
E107981
|
entity |
| Predicate | hasComponent |
P35
|
FINISHED |
| Object |
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.
|
E689309
|
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: Cabin John Bridge | Statement: [Potomac River crossings toward Washington, D.C., hasComponent, Cabin John Bridge]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cabin John Bridge Context triple: [Potomac River crossings toward Washington, D.C., hasComponent, Cabin John Bridge]
-
A.
Rockville Bridge
Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
-
B.
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.
-
C.
M Street Bridge
The M Street Bridge was a former Sacramento River crossing in California that preceded and was ultimately replaced by the iconic Tower Bridge.
-
D.
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.
-
E.
Pennsylvania Avenue Bridge
The Pennsylvania Avenue Bridge is a major roadway bridge in Washington, D.C., carrying Pennsylvania Avenue across the Anacostia River and serving as an important commuter and transit link in the city’s transportation network.
- 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: Cabin John Bridge Triple: [Potomac River crossings toward Washington, D.C., hasComponent, Cabin John Bridge]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cabin John Bridge Target entity description: 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.
-
A.
Rockville Bridge
Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
-
B.
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.
-
C.
M Street Bridge
The M Street Bridge was a former Sacramento River crossing in California that preceded and was ultimately replaced by the iconic Tower Bridge.
-
D.
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.
-
E.
Pennsylvania Avenue Bridge
The Pennsylvania Avenue Bridge is a major roadway bridge in Washington, D.C., carrying Pennsylvania Avenue across the Anacostia River and serving as an important commuter and transit link in the city’s transportation network.
- 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_69c8fa179c008190a6bba55cb62b7fe8 |
completed | March 29, 2026, 10:08 a.m. |
| NEDg | Description generation | batch_69c8faeaf610819087115315c2c1a3c5 |
completed | March 29, 2026, 10:11 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c8fb4c55b48190be95a4299ce4b5c9 |
completed | March 29, 2026, 10:13 a.m. |
Created at: March 20, 2026, 1:24 p.m.