Triple

T3975625
Position Surface form Disambiguated ID Type / Status
Subject Maine Central Railroad E85633 entity
Predicate notableRoute P22 FINISHED
Object Brunswick Branch
The Brunswick Branch is a rail line in Maine that historically formed part of the Maine Central Railroad’s network, connecting coastal communities and supporting regional passenger and freight service.
E409843 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: Brunswick Branch | Statement: [Maine Central Railroad, notableRoute, Brunswick Branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Brunswick Branch
Context triple: [Maine Central Railroad, notableRoute, Brunswick Branch]
  • A. Wando River
    The Wando River is a tidal river in the Lowcountry region of South Carolina that flows through the Charleston area and empties into Charleston Harbor.
  • B. Accokeek Creek
    Accokeek Creek is a small waterway in southern Maryland that flows through the Accokeek area toward the Potomac River, contributing to the region’s local watershed and natural landscape.
  • C. Rapidan River
    The Rapidan River is a tributary of the Rappahannock River in Virginia that played a significant strategic role as a natural barrier during the American Civil War.
  • D. River Blakewater
    River Blakewater is a small river in Lancashire, England, that flows through the town of Blackburn and has historically influenced its development and industry.
  • E. Pocomoke River
    The Pocomoke River is a major blackwater river on the Delmarva Peninsula that flows through Maryland and Virginia before emptying into the Chesapeake Bay.
  • 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: Brunswick Branch
Triple: [Maine Central Railroad, notableRoute, Brunswick Branch]
Generated description
The Brunswick Branch is a rail line in Maine that historically formed part of the Maine Central Railroad’s network, connecting coastal communities and supporting regional passenger and freight service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Brunswick Branch
Target entity description: The Brunswick Branch is a rail line in Maine that historically formed part of the Maine Central Railroad’s network, connecting coastal communities and supporting regional passenger and freight service.
  • A. Wando River
    The Wando River is a tidal river in the Lowcountry region of South Carolina that flows through the Charleston area and empties into Charleston Harbor.
  • B. Accokeek Creek
    Accokeek Creek is a small waterway in southern Maryland that flows through the Accokeek area toward the Potomac River, contributing to the region’s local watershed and natural landscape.
  • C. Rapidan River
    The Rapidan River is a tributary of the Rappahannock River in Virginia that played a significant strategic role as a natural barrier during the American Civil War.
  • D. River Blakewater
    River Blakewater is a small river in Lancashire, England, that flows through the town of Blackburn and has historically influenced its development and industry.
  • E. Pocomoke River
    The Pocomoke River is a major blackwater river on the Delmarva Peninsula that flows through Maryland and Virginia before emptying into the Chesapeake Bay.
  • 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_69b5628ab3ec8190aaaf7803f9f992af completed March 14, 2026, 1:28 p.m.
NEDg Description generation batch_69b5633103e081909dbe7a7e54877343 completed March 14, 2026, 1:31 p.m.
NED2 Entity disambiguation (via description) batch_69b563eca17c81908deff0d361a7be87 completed March 14, 2026, 1:34 p.m.
Created at: March 9, 2026, 3:33 p.m.