Triple
T375047
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Broad Street Station (Philadelphia) |
E8352
|
entity |
| Predicate | adjacentTo |
P224
|
FINISHED |
| Object |
Pennsylvania Railroad viaduct along Filbert Street
The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
|
E8352
|
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: Pennsylvania Railroad viaduct along Filbert Street | Statement: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad viaduct along Filbert Street Context triple: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
-
A.
14th Street Bridge complex
The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
-
B.
Broad Street Station (Philadelphia)
Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
-
C.
14th Street Bridge
The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
-
D.
Third Avenue Bridge
The Third Avenue Bridge is a major swing bridge in New York City that carries traffic between Manhattan and the Bronx.
-
E.
30th Street Station
30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
- 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: Pennsylvania Railroad viaduct along Filbert Street Triple: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
Generated description
The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad viaduct along Filbert Street Target entity description: The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
-
A.
14th Street Bridge complex
The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
-
B.
Broad Street Station (Philadelphia)
chosen
Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
-
C.
14th Street Bridge
The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
-
D.
Third Avenue Bridge
The Third Avenue Bridge is a major swing bridge in New York City that carries traffic between Manhattan and the Bronx.
-
E.
30th Street Station
30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
- F. None of above.
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_69a2e7f2ec648190b42bc7db424f8109 |
completed | Feb. 28, 2026, 1:04 p.m. |
| NER | Named-entity recognition | batch_69a2ec1585648190943f1c698e9b2d81 |
completed | Feb. 28, 2026, 1:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a3f4dbf49081908ccd464668483b77 |
completed | March 1, 2026, 8:12 a.m. |
| NEDg | Description generation | batch_69a3f6d18c488190ab509ded4d5b0367 |
completed | March 1, 2026, 8:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a3fa368edc8190ac00be2189df7cf9 |
completed | March 1, 2026, 8:35 a.m. |
Created at: Feb. 28, 2026, 1:08 p.m.