Triple

T1534208
Position Surface form Disambiguated ID Type / Status
Subject Fréjus Rail Tunnel E32513 entity
Predicate partOf P40 FINISHED
Object Lyon–Turin rail axis
The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
E174504 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: Lyon–Turin rail axis | Statement: [Fréjus Rail Tunnel, partOf, Lyon–Turin rail axis]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lyon–Turin rail axis
Context triple: [Fréjus Rail Tunnel, partOf, Lyon–Turin rail axis]
  • A. Genoa–Ventimiglia railway
    The Genoa–Ventimiglia railway is a major coastal rail line in northwestern Italy that runs along the Ligurian Sea, connecting Genoa with towns up to the French border.
  • B. Lyon–Grenoble railway
    The Lyon–Grenoble railway is a major French rail line connecting the city of Lyon with Grenoble, serving as an important corridor for both regional and long-distance passenger and freight traffic in southeastern France.
  • C. Lyon–Bourg-en-Bresse railway
    The Lyon–Bourg-en-Bresse railway is a key regional rail line in eastern France that connects the city of Lyon with Bourg-en-Bresse, serving both commuter and intercity traffic.
  • D. Basel–Mulhouse–Freiburg transport corridor
    The Basel–Mulhouse–Freiburg transport corridor is a major transnational hub in the Upper Rhine region that integrates road, rail, and air links between France, Switzerland, and Germany around the tri-city area.
  • E. Geneva–Lyon railway
    The Geneva–Lyon railway is an international rail line linking the Swiss city of Geneva with Lyon in France, serving as a key passenger and freight corridor between the two countries.
  • 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: Lyon–Turin rail axis
Triple: [Fréjus Rail Tunnel, partOf, Lyon–Turin rail axis]
Generated description
The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lyon–Turin rail axis
Target entity description: The Lyon–Turin rail axis is a major transalpine high-speed and freight railway project linking Lyon in France with Turin in Italy through long base tunnels under the Alps to improve cross-border transport.
  • A. Genoa–Ventimiglia railway
    The Genoa–Ventimiglia railway is a major coastal rail line in northwestern Italy that runs along the Ligurian Sea, connecting Genoa with towns up to the French border.
  • B. Lyon–Grenoble railway
    The Lyon–Grenoble railway is a major French rail line connecting the city of Lyon with Grenoble, serving as an important corridor for both regional and long-distance passenger and freight traffic in southeastern France.
  • C. Lyon–Bourg-en-Bresse railway
    The Lyon–Bourg-en-Bresse railway is a key regional rail line in eastern France that connects the city of Lyon with Bourg-en-Bresse, serving both commuter and intercity traffic.
  • D. Basel–Mulhouse–Freiburg transport corridor
    The Basel–Mulhouse–Freiburg transport corridor is a major transnational hub in the Upper Rhine region that integrates road, rail, and air links between France, Switzerland, and Germany around the tri-city area.
  • E. Geneva–Lyon railway
    The Geneva–Lyon railway is an international rail line linking the Swiss city of Geneva with Lyon in France, serving as a key passenger and freight corridor between the two countries.
  • 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_69a885ea86308190998f6bc14bb91f8e completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69aa61f8df00819086f34847e2170e12 completed March 6, 2026, 5:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad295da0988190b1dc171bcdfe4d71 completed March 8, 2026, 7:46 a.m.
NEDg Description generation batch_69ad29dc9fd08190b67527f0662c92dc completed March 8, 2026, 7:48 a.m.
NED2 Entity disambiguation (via description) batch_69ad2a4d71a88190b67ed21beebbb479 completed March 8, 2026, 7:50 a.m.
Created at: March 4, 2026, 7:26 p.m.