Triple

T5718844
Position Surface form Disambiguated ID Type / Status
Subject Crawford Notch E126089 entity
Predicate crossedBy P416 FINISHED
Object Portland and Ogdensburg Railroad (historical)
The Portland and Ogdensburg Railroad was a 19th-century rail line that connected Portland, Maine, to northern New England and Quebec, notable for its rugged mountain route through New Hampshire’s White Mountains.
 E540262 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: Portland and Ogdensburg Railroad (historical) | Statement: [Crawford Notch, crossedBy, Portland and Ogdensburg Railroad (historical)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Portland and Ogdensburg Railroad (historical)
Context triple: [Crawford Notch, crossedBy, Portland and Ogdensburg Railroad (historical)]
  • A. Concord Railroad
    Concord Railroad was a 19th-century New Hampshire railroad company that later became part of the Boston and Maine Railroad through consolidation.
  • 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. Rutland Railroad
    The Rutland Railroad was a regional railroad in the northeastern United States that primarily served Vermont and parts of New York, playing a key role in the area's freight and passenger transportation during the late 19th and early 20th centuries.
  • D. Fitchburg Railroad
    The Fitchburg Railroad was a historic New England rail line that operated across Massachusetts and into Vermont, later becoming part of the Boston and Maine Railroad system.
  • E. Hannibal and St. Joseph Railroad
    The Hannibal and St. Joseph Railroad was a pioneering 19th-century rail line in Missouri, notable as one of the first railroads to cross the state and for carrying early Pony Express mail.
  • 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: Portland and Ogdensburg Railroad (historical)
Triple: [Crawford Notch, crossedBy, Portland and Ogdensburg Railroad (historical)]
Generated description
The Portland and Ogdensburg Railroad was a 19th-century rail line that connected Portland, Maine, to northern New England and Quebec, notable for its rugged mountain route through New Hampshire’s White Mountains.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Portland and Ogdensburg Railroad (historical)
Target entity description: The Portland and Ogdensburg Railroad was a 19th-century rail line that connected Portland, Maine, to northern New England and Quebec, notable for its rugged mountain route through New Hampshire’s White Mountains.
  • A. Concord Railroad
    Concord Railroad was a 19th-century New Hampshire railroad company that later became part of the Boston and Maine Railroad through consolidation.
  • 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. Rutland Railroad
    The Rutland Railroad was a regional railroad in the northeastern United States that primarily served Vermont and parts of New York, playing a key role in the area's freight and passenger transportation during the late 19th and early 20th centuries.
  • D. Fitchburg Railroad
    The Fitchburg Railroad was a historic New England rail line that operated across Massachusetts and into Vermont, later becoming part of the Boston and Maine Railroad system.
  • E. Hannibal and St. Joseph Railroad
    The Hannibal and St. Joseph Railroad was a pioneering 19th-century rail line in Missouri, notable as one of the first railroads to cross the state and for carrying early Pony Express mail.
  • 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_69c0082e3d548190950169847b43043b completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c024e1ec7c8190a08e1b7954db2a9d completed March 22, 2026, 5:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69c05a7db0788190b4a5e7b5d9c94588 completed March 22, 2026, 9:09 p.m.
NEDg Description generation batch_69c05b7c3bd48190ad8303bf1bb3ec6a completed March 22, 2026, 9:13 p.m.
NED2 Entity disambiguation (via description) batch_69c05c22c31081909a9a67d99e7c728c completed March 22, 2026, 9:16 p.m.
Created at: March 22, 2026, 3:46 p.m.