Triple
T2993774
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pan Am Railways |
E81017
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object |
Guilford Rail System
Guilford Rail System was a major New England-based freight railroad company that consolidated several regional railroads under common ownership before rebranding as Pan Am Railways.
|
E317511
|
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: Guilford Rail System | Statement: [Pan Am Railways, formerName, Guilford Rail System]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Guilford Rail System Context triple: [Pan Am Railways, formerName, Guilford Rail System]
-
A.
Pelham Line
The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
-
B.
Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
-
C.
New York and Putnam Railroad
The New York and Putnam Railroad was a historic rail line in New York State that once connected New York City to communities in Westchester and Putnam counties before its route was later converted into recreational trails.
-
D.
Wallkill Valley Railroad
The Wallkill Valley Railroad was a historic rail line in New York’s Hudson Valley that played a key role in the region’s 19th- and early 20th-century transportation and industrial development.
-
E.
Pan Handle Railway
The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
- 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: Guilford Rail System Triple: [Pan Am Railways, formerName, Guilford Rail System]
Generated description
Guilford Rail System was a major New England-based freight railroad company that consolidated several regional railroads under common ownership before rebranding as Pan Am Railways.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Guilford Rail System Target entity description: Guilford Rail System was a major New England-based freight railroad company that consolidated several regional railroads under common ownership before rebranding as Pan Am Railways.
-
A.
Pelham Line
The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
-
B.
Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
-
C.
New York and Putnam Railroad
The New York and Putnam Railroad was a historic rail line in New York State that once connected New York City to communities in Westchester and Putnam counties before its route was later converted into recreational trails.
-
D.
Wallkill Valley Railroad
The Wallkill Valley Railroad was a historic rail line in New York’s Hudson Valley that played a key role in the region’s 19th- and early 20th-century transportation and industrial development.
-
E.
Pan Handle Railway
The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
- 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.