Triple

T1400259
Position Surface form Disambiguated ID Type / Status
Subject Canadian National Railway E30762 entity
Predicate hasPredecessor P97 FINISHED
Object Grand Trunk Railway
The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
 E167457 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: Grand Trunk Railway | Statement: [Canadian National Railway, hasPredecessor, Grand Trunk Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Grand Trunk Railway
Context triple: [Canadian National Railway, hasPredecessor, Grand Trunk Railway]
  • A. Grand Trunk Pacific Railway
    The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
  • B. Canadian Northern Railway
    The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
  • C. Ontario Northland Railway
    Ontario Northland Railway is a regional rail operator in northeastern Ontario that provides freight and passenger services connecting remote communities with larger urban centers.
  • D. St. Lawrence and Atlantic Railroad
    The St. Lawrence and Atlantic Railroad is a regional rail line in the northeastern United States and Canada that provides freight transportation across parts of Maine, New Hampshire, Vermont, and Quebec.
  • E. Canadian National Railway
    Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
  • 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: Grand Trunk Railway
Triple: [Canadian National Railway, hasPredecessor, Grand Trunk Railway]
Generated description
The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Grand Trunk Railway
Target entity description: The Grand Trunk Railway was a major 19th- and early 20th-century Canadian railway system that played a key role in linking central Canada with the Atlantic coast and the United States before being absorbed into the Canadian National Railway.
  • A. Grand Trunk Pacific Railway
    The Grand Trunk Pacific Railway was an early 20th-century Canadian transcontinental railway that played a key role in opening Western Canada to settlement and trade before its assets were absorbed into the national rail system.
  • B. Canadian Northern Railway
    The Canadian Northern Railway was an early 20th-century Canadian transcontinental railway whose network later became a core component of the Canadian National Railway system.
  • C. Ontario Northland Railway
    Ontario Northland Railway is a regional rail operator in northeastern Ontario that provides freight and passenger services connecting remote communities with larger urban centers.
  • D. St. Lawrence and Atlantic Railroad
    The St. Lawrence and Atlantic Railroad is a regional rail line in the northeastern United States and Canada that provides freight transportation across parts of Maine, New Hampshire, Vermont, and Quebec.
  • E. Canadian National Railway
    Canadian National Railway is a major Canadian freight railway company that operates an extensive rail network across Canada and into the United States.
  • 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_69a498fd4e408190bd73eca30ea9754c completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c39c4c148190997150996ca26a99 completed March 1, 2026, 10:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad0e657d3c8190962220e52e3e64c0 completed March 8, 2026, 5:51 a.m.
NEDg Description generation batch_69ad0f2b046081908be111f16e2de0fb completed March 8, 2026, 5:54 a.m.
NED2 Entity disambiguation (via description) batch_69ad0fe782548190a437386ee2f4c2d5 completed March 8, 2026, 5:57 a.m.
Created at: March 1, 2026, 7:59 p.m.