Triple
T3975622
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Maine Central Railroad |
E85633
|
entity |
| Predicate | notableRoute |
P22
|
FINISHED |
| Object |
Rockland Branch
Rockland Branch is a historic railroad line in Maine that runs along the state's mid-coast, connecting inland communities with the port city of Rockland.
|
E405068
|
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: Rockland Branch | Statement: [Maine Central Railroad, notableRoute, Rockland Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rockland Branch Context triple: [Maine Central Railroad, notableRoute, Rockland Branch]
-
A.
Salem Branch
Salem Branch is a regional railroad line in southern New Jersey that serves freight and limited local rail operations.
-
B.
Beverly Branch
Beverly Branch is a commuter rail branch line of Metra's Rock Island District serving Chicago's Beverly and Morgan Park neighborhoods.
-
C.
Princeton Branch
The Princeton Branch is a short commuter rail line in New Jersey that connects Princeton with the Northeast Corridor main line at Princeton Junction.
-
D.
Rockport Branch
Rockport Branch is a rail line segment in Massachusetts that forms the Rockport portion of the MBTA Commuter Rail’s Newburyport/Rockport Line, serving communities on Cape Ann.
-
E.
Aurora Branch
Aurora Branch is a segment of the Illinois Prairie Path, a multi-use recreational trail in northeastern Illinois that extends toward the city of Aurora.
- 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: Rockland Branch Triple: [Maine Central Railroad, notableRoute, Rockland Branch]
Generated description
Rockland Branch is a historic railroad line in Maine that runs along the state's mid-coast, connecting inland communities with the port city of Rockland.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rockland Branch Target entity description: Rockland Branch is a historic railroad line in Maine that runs along the state's mid-coast, connecting inland communities with the port city of Rockland.
-
A.
Salem Branch
Salem Branch is a regional railroad line in southern New Jersey that serves freight and limited local rail operations.
-
B.
Beverly Branch
Beverly Branch is a commuter rail branch line of Metra's Rock Island District serving Chicago's Beverly and Morgan Park neighborhoods.
-
C.
Princeton Branch
The Princeton Branch is a short commuter rail line in New Jersey that connects Princeton with the Northeast Corridor main line at Princeton Junction.
-
D.
Rockport Branch
Rockport Branch is a rail line segment in Massachusetts that forms the Rockport portion of the MBTA Commuter Rail’s Newburyport/Rockport Line, serving communities on Cape Ann.
-
E.
Aurora Branch
Aurora Branch is a segment of the Illinois Prairie Path, a multi-use recreational trail in northeastern Illinois that extends toward the city of Aurora.
- 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_69aed93908348190a26c8aaf4fab3e86 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aef9b6d8008190822fceabe6542b3d |
completed | March 9, 2026, 4:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5401712188190aa6144dc1d5dcab6 |
completed | March 14, 2026, 11:01 a.m. |
| NEDg | Description generation | batch_69b54411546481908627a8b3ce7a433a |
completed | March 14, 2026, 11:18 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b544a02d5c8190a76a074cc7e98cc5 |
completed | March 14, 2026, 11:21 a.m. |
Created at: March 9, 2026, 3:33 p.m.