Triple
T3191144
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fern Rock Transportation Center |
E66824
|
entity |
| Predicate | adjacentTo |
P224
|
FINISHED |
| Object |
SEPTA Fern Rock Rail Yard
SEPTA Fern Rock Rail Yard is a major rail storage and maintenance facility in North Philadelphia serving SEPTA’s Broad Street Line and regional rail operations.
|
E336140
|
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: SEPTA Fern Rock Rail Yard | Statement: [Fern Rock Transportation Center, adjacentTo, SEPTA Fern Rock Rail Yard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SEPTA Fern Rock Rail Yard Context triple: [Fern Rock Transportation Center, adjacentTo, SEPTA Fern Rock Rail Yard]
-
A.
Frankford Transportation Center
Frankford Transportation Center is a major multimodal transit hub in Northeast Philadelphia serving as a key terminal for SEPTA’s Market–Frankford Line and numerous bus routes.
-
B.
Jefferson Station (SEPTA)
Jefferson Station (SEPTA) is a major underground regional rail hub in Center City Philadelphia that connects multiple commuter lines and provides direct access to nearby downtown destinations.
-
C.
Suburban Station (SEPTA)
Suburban Station (SEPTA) is a major underground regional rail hub in Center City Philadelphia that serves as one of SEPTA’s primary commuter rail terminals.
-
D.
City Hall Station (Philadelphia)
City Hall Station (Philadelphia) is a major underground transit hub in Center City that serves as a key interchange point for multiple SEPTA subway and trolley lines beneath Philadelphia’s City Hall.
-
E.
Corry Station
Corry Station is a U.S. Navy installation in Escambia County, Florida, primarily known as a training center for information warfare, cryptology, and related technical fields.
- 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: SEPTA Fern Rock Rail Yard Triple: [Fern Rock Transportation Center, adjacentTo, SEPTA Fern Rock Rail Yard]
Generated description
SEPTA Fern Rock Rail Yard is a major rail storage and maintenance facility in North Philadelphia serving SEPTA’s Broad Street Line and regional rail operations.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SEPTA Fern Rock Rail Yard Target entity description: SEPTA Fern Rock Rail Yard is a major rail storage and maintenance facility in North Philadelphia serving SEPTA’s Broad Street Line and regional rail operations.
-
A.
Frankford Transportation Center
Frankford Transportation Center is a major multimodal transit hub in Northeast Philadelphia serving as a key terminal for SEPTA’s Market–Frankford Line and numerous bus routes.
-
B.
Jefferson Station (SEPTA)
Jefferson Station (SEPTA) is a major underground regional rail hub in Center City Philadelphia that connects multiple commuter lines and provides direct access to nearby downtown destinations.
-
C.
Suburban Station (SEPTA)
Suburban Station (SEPTA) is a major underground regional rail hub in Center City Philadelphia that serves as one of SEPTA’s primary commuter rail terminals.
-
D.
City Hall Station (Philadelphia)
City Hall Station (Philadelphia) is a major underground transit hub in Center City that serves as a key interchange point for multiple SEPTA subway and trolley lines beneath Philadelphia’s City Hall.
-
E.
Corry Station
Corry Station is a U.S. Navy installation in Escambia County, Florida, primarily known as a training center for information warfare, cryptology, and related technical fields.
- 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_69ad8588ba18819086a10951c32ecb80 |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69ada6e7d0d081908b1c36bb909a58bf |
completed | March 8, 2026, 4:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b24ba19b2881908a298e6fb99a058e |
completed | March 12, 2026, 5:14 a.m. |
| NEDg | Description generation | batch_69b24f94bcb8819089f53dbe923a93e2 |
completed | March 12, 2026, 5:31 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b251458ab48190a374f910103763f2 |
completed | March 12, 2026, 5:38 a.m. |
Created at: March 8, 2026, 3:07 p.m.