Triple

T16736185
Position Surface form Disambiguated ID Type / Status
Subject Bangor and Aroostook Railroad E406723 entity
Predicate successor P78 FINISHED
Object Maine Northern Railway (on some lines)
Maine Northern Railway is a regional freight railroad operating former Bangor and Aroostook lines in northern Maine and neighboring Canadian provinces.
E406723 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: Maine Northern Railway (on some lines) | Statement: [Bangor and Aroostook Railroad, successor, Maine Northern Railway (on some lines)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Maine Northern Railway (on some lines)
Context triple: [Bangor and Aroostook Railroad, successor, Maine Northern Railway (on some lines)]
  • A. Maine Central Railroad
    Maine Central Railroad was a major New England railroad that operated extensive freight and passenger services across Maine and neighboring states from the 19th through the 20th century.
  • B. Bangor and Aroostook Railroad
    The Bangor and Aroostook Railroad was a regional railroad in northern Maine known for hauling forest products, potatoes, and other freight across the state's rural areas.
  • C. Boston–Maine rail network
    The Boston–Maine rail network was a regional railroad system in New England that connected major cities and towns, notably linking Boston with communities throughout Maine and neighboring states.
  • D. Boston and Maine Railroad
    The Boston and Maine Railroad was a major New England railroad that operated extensive passenger and freight services across Massachusetts, New Hampshire, Maine, and surrounding states from the 19th through the mid-20th century.
  • E. Boston and Maine Railroad main line
    The Boston and Maine Railroad main line was a major New England rail corridor that formed the core route of the Boston and Maine Railroad, connecting Boston with key cities and towns across northern Massachusetts and beyond.
  • 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: Maine Northern Railway (on some lines)
Triple: [Bangor and Aroostook Railroad, successor, Maine Northern Railway (on some lines)]
Generated description
Maine Northern Railway is a regional freight railroad operating former Bangor and Aroostook lines in northern Maine and neighboring Canadian provinces.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Maine Northern Railway (on some lines)
Target entity description: Maine Northern Railway is a regional freight railroad operating former Bangor and Aroostook lines in northern Maine and neighboring Canadian provinces.
  • A. Maine Central Railroad
    Maine Central Railroad was a major New England railroad that operated extensive freight and passenger services across Maine and neighboring states from the 19th through the 20th century.
  • B. Bangor and Aroostook Railroad chosen
    The Bangor and Aroostook Railroad was a regional railroad in northern Maine known for hauling forest products, potatoes, and other freight across the state's rural areas.
  • C. Boston–Maine rail network
    The Boston–Maine rail network was a regional railroad system in New England that connected major cities and towns, notably linking Boston with communities throughout Maine and neighboring states.
  • D. Boston and Maine Railroad
    The Boston and Maine Railroad was a major New England railroad that operated extensive passenger and freight services across Massachusetts, New Hampshire, Maine, and surrounding states from the 19th through the mid-20th century.
  • E. Boston and Maine Railroad main line
    The Boston and Maine Railroad main line was a major New England rail corridor that formed the core route of the Boston and Maine Railroad, connecting Boston with key cities and towns across northern Massachusetts and beyond.
  • F. None of above.

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_69d8838ffb088190a0b11149929006bf completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e39c3a86848190a03f243dd1bdb899 completed April 18, 2026, 2:59 p.m.
NED1 Entity disambiguation (via context triple) batch_6a014136275c819084da2756632e0f48 completed May 11, 2026, 2:38 a.m.
NEDg Description generation batch_6a0141cadb6c8190b2832e12fd431b0b completed May 11, 2026, 2:41 a.m.
NED2 Entity disambiguation (via description) batch_6a014264ff8881909722c262c3f85e1f completed May 11, 2026, 2:43 a.m.
Created at: April 10, 2026, 5:20 a.m.