Triple
T92364
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Subway–Surface Trolley Lines |
E1855
|
entity |
| Predicate | centralTunnelTerminus |
P388
|
FINISHED |
| Object |
40th Street Portal
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
|
E13334
|
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: 40th Street Portal | Statement: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 40th Street Portal Context triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
-
A.
Sproul Plaza
Sproul Plaza is the central public square of UC Berkeley’s campus, historically renowned as a focal point for student activism and free speech movements.
-
B.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
-
C.
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.
-
D.
Conley Terminal
Conley Terminal is the primary container shipping facility serving the Port of Boston and New England’s maritime trade.
-
E.
Concourse C
Concourse C is one of the main passenger terminal concourses at Washington Dulles International Airport, serving numerous domestic and international airline gates.
- 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: 40th Street Portal Triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
Generated description
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 40th Street Portal Target entity description: 40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
-
A.
Sproul Plaza
Sproul Plaza is the central public square of UC Berkeley’s campus, historically renowned as a focal point for student activism and free speech movements.
-
B.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
-
C.
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.
-
D.
Conley Terminal
Conley Terminal is the primary container shipping facility serving the Port of Boston and New England’s maritime trade.
-
E.
Concourse C
Concourse C is one of the main passenger terminal concourses at Washington Dulles International Airport, serving numerous domestic and international airline gates.
- 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_69a24d1a97dc819094e6c021fe9b05a7 |
completed | Feb. 28, 2026, 2:04 a.m. |
| NER | Named-entity recognition | batch_69a2567dd770819088eb77ffc6d2d1cf |
completed | Feb. 28, 2026, 2:44 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2981ed378819099ef3fbff2236a94 |
completed | Feb. 28, 2026, 7:24 a.m. |
| NEDg | Description generation | batch_69a298822e7c8190b37a31a9cc19bc54 |
completed | Feb. 28, 2026, 7:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a298f38e4881908210642539f15378 |
completed | Feb. 28, 2026, 7:27 a.m. |
Created at: Feb. 28, 2026, 2:07 a.m.