Triple
T2993797
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pan Am Railways |
E81017
|
entity |
| Predicate | formedFrom |
P402
|
FINISHED |
| Object |
Springfield Terminal Railway
Springfield Terminal Railway was a regional New England railroad best known for its role as the operating subsidiary that underpinned the later Pan Am Railways system.
|
E317515
|
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: Springfield Terminal Railway | Statement: [Pan Am Railways, formedFrom, Springfield Terminal Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Springfield Terminal Railway Context triple: [Pan Am Railways, formedFrom, Springfield Terminal Railway]
-
A.
Springfield Amtrak station
Springfield Amtrak station is a passenger rail station in downtown Springfield, Illinois, serving Amtrak trains on major routes through the region.
-
B.
Durbin and Greenbrier Valley Railroad
The Durbin and Greenbrier Valley Railroad is a heritage railroad in West Virginia that operates scenic tourist excursions through the Allegheny Mountains using historic locomotives and rolling stock.
-
C.
Springfield Union Station
Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
-
D.
Wayne Junction station
Wayne Junction station is a major SEPTA regional rail hub in Philadelphia, Pennsylvania, serving multiple commuter lines and providing key connections within the city's transit network.
-
E.
Northern Central Railway
Northern Central Railway was a historic American railroad that operated primarily in Pennsylvania and Maryland, serving as an important north–south link in the 19th and early 20th centuries.
- 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: Springfield Terminal Railway Triple: [Pan Am Railways, formedFrom, Springfield Terminal Railway]
Generated description
Springfield Terminal Railway was a regional New England railroad best known for its role as the operating subsidiary that underpinned the later Pan Am Railways system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Springfield Terminal Railway Target entity description: Springfield Terminal Railway was a regional New England railroad best known for its role as the operating subsidiary that underpinned the later Pan Am Railways system.
-
A.
Springfield Amtrak station
Springfield Amtrak station is a passenger rail station in downtown Springfield, Illinois, serving Amtrak trains on major routes through the region.
-
B.
Durbin and Greenbrier Valley Railroad
The Durbin and Greenbrier Valley Railroad is a heritage railroad in West Virginia that operates scenic tourist excursions through the Allegheny Mountains using historic locomotives and rolling stock.
-
C.
Springfield Union Station
Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
-
D.
Wayne Junction station
Wayne Junction station is a major SEPTA regional rail hub in Philadelphia, Pennsylvania, serving multiple commuter lines and providing key connections within the city's transit network.
-
E.
Northern Central Railway
Northern Central Railway was a historic American railroad that operated primarily in Pennsylvania and Maryland, serving as an important north–south link in the 19th and early 20th centuries.
- 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_69ad8b187fc8819085914d3c9ea3142d |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad99e291e0819089f81c0a7d7a6cd9 |
completed | March 8, 2026, 3:46 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b109061684819086777d3b871c94f8 |
completed | March 11, 2026, 6:17 a.m. |
| NEDg | Description generation | batch_69b1196399e881908887513a3bdf7f98 |
completed | March 11, 2026, 7:27 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b119d306208190b53b059f0ff57712 |
completed | March 11, 2026, 7:29 a.m. |
Created at: March 8, 2026, 2:59 p.m.