Triple

T1479877
Position Surface form Disambiguated ID Type / Status
Subject Trent–Severn Waterway E30926 entity
Predicate hasPart P35 FINISHED
Object Big Chute Marine Railway
Big Chute Marine Railway is a unique Canadian boat lift on the Trent–Severn Waterway that carries vessels over a steep incline between water levels using a large, rail-mounted carriage.
E169063 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: Big Chute Marine Railway | Statement: [Trent–Severn Waterway, hasPart, Big Chute Marine Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Big Chute Marine Railway
Context triple: [Trent–Severn Waterway, hasPart, Big Chute Marine Railway]
  • A. Chatham Railroad Museum
    The Chatham Railroad Museum is a local history museum in Chatham, Massachusetts, dedicated to preserving and interpreting the town’s railroad heritage through exhibits, artifacts, and educational displays.
  • B. Kelso Depot
    Kelso Depot is a historic former railroad station and visitor center in California’s Mojave Desert, notable for its Spanish Mission Revival architecture and role in serving travelers and workers along the Union Pacific Railroad.
  • C. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • D. Railtown 1897 State Historic Park
    Railtown 1897 State Historic Park is a California state park and historic railroad facility preserving vintage trains, a roundhouse, and film-famous locomotives from the Sierra Railway.
  • E. Weld Boathouse
    Weld Boathouse is a historic Harvard University boathouse on the Charles River that serves as a primary training and rowing facility for Harvard’s crews, particularly women’s and lightweight teams.
  • 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: Big Chute Marine Railway
Triple: [Trent–Severn Waterway, hasPart, Big Chute Marine Railway]
Generated description
Big Chute Marine Railway is a unique Canadian boat lift on the Trent–Severn Waterway that carries vessels over a steep incline between water levels using a large, rail-mounted carriage.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Big Chute Marine Railway
Target entity description: Big Chute Marine Railway is a unique Canadian boat lift on the Trent–Severn Waterway that carries vessels over a steep incline between water levels using a large, rail-mounted carriage.
  • A. Chatham Railroad Museum
    The Chatham Railroad Museum is a local history museum in Chatham, Massachusetts, dedicated to preserving and interpreting the town’s railroad heritage through exhibits, artifacts, and educational displays.
  • B. Kelso Depot
    Kelso Depot is a historic former railroad station and visitor center in California’s Mojave Desert, notable for its Spanish Mission Revival architecture and role in serving travelers and workers along the Union Pacific Railroad.
  • C. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • D. Railtown 1897 State Historic Park
    Railtown 1897 State Historic Park is a California state park and historic railroad facility preserving vintage trains, a roundhouse, and film-famous locomotives from the Sierra Railway.
  • E. Weld Boathouse
    Weld Boathouse is a historic Harvard University boathouse on the Charles River that serves as a primary training and rowing facility for Harvard’s crews, particularly women’s and lightweight teams.
  • 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_69a498fe55a88190ab7f9e40ace88e49 completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c674cc9c819088fc9146c7a7a914 completed March 1, 2026, 11:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad15aff1288190a3e36324d975d482 completed March 8, 2026, 6:22 a.m.
NEDg Description generation batch_69ad1639e21081908737b51e910ceae3 completed March 8, 2026, 6:24 a.m.
NED2 Entity disambiguation (via description) batch_69ad16a98fd08190a14f4d7d6b11f5e8 completed March 8, 2026, 6:26 a.m.
Created at: March 1, 2026, 8:11 p.m.