Triple

T4986667
Position Surface form Disambiguated ID Type / Status
Subject Lausanne–Bern railway line E112019 entity
Predicate formsSectionOf P3120 FINISHED
Object Lausanne–Olten main line
The Lausanne–Olten main line is a key Swiss railway corridor linking western Switzerland with the central rail hub of Olten and forming part of the country’s primary east–west rail axis.
E493311 NE FINISHED

How this triple was built (5 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: Lausanne–Olten main line | Statement: [Lausanne–Bern railway line, formsSectionOf, Lausanne–Olten main line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lausanne–Olten main line
Context triple: [Lausanne–Bern railway line, formsSectionOf, Lausanne–Olten main line]
  • A. Geneva–Lausanne–Bern–Zurich main line
    The Geneva–Lausanne–Bern–Zurich main line is a major Swiss railway corridor that connects key cities across western and central Switzerland and forms part of the country’s primary east–west rail axis.
  • B. Lausanne–Geneva railway line
    The Lausanne–Geneva railway line is a major Swiss rail corridor connecting the cities of Lausanne and Geneva along the northern shore of Lake Geneva, serving as a key route for both regional and international trains.
  • C. Bern–Neuchâtel railway line
    The Bern–Neuchâtel railway line is a key Swiss standard-gauge route connecting the federal city of Bern with Neuchâtel, serving both regional and intercity passenger traffic.
  • D. Basel–Olten railway line
    The Basel–Olten railway line is a major Swiss rail corridor linking the city of Basel with the central hub of Olten, forming part of a key national and international transit route.
  • E. Vevey–Montreux railway line
    The Vevey–Montreux railway line is a Swiss standard-gauge rail route along the shores of Lake Geneva that connects the towns of Vevey and Montreux and forms part of an important regional and tourist transport corridor.
  • 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: Lausanne–Olten main line
Triple: [Lausanne–Bern railway line, formsSectionOf, Lausanne–Olten main line]
Generated description
The Lausanne–Olten main line is a key Swiss railway corridor linking western Switzerland with the central rail hub of Olten and forming part of the country’s primary east–west rail axis.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lausanne–Olten main line
Target entity description: The Lausanne–Olten main line is a key Swiss railway corridor linking western Switzerland with the central rail hub of Olten and forming part of the country’s primary east–west rail axis.
  • A. Geneva–Lausanne–Bern–Zurich main line
    The Geneva–Lausanne–Bern–Zurich main line is a major Swiss railway corridor that connects key cities across western and central Switzerland and forms part of the country’s primary east–west rail axis.
  • B. Lausanne–Geneva railway line
    The Lausanne–Geneva railway line is a major Swiss rail corridor connecting the cities of Lausanne and Geneva along the northern shore of Lake Geneva, serving as a key route for both regional and international trains.
  • C. Bern–Neuchâtel railway line
    The Bern–Neuchâtel railway line is a key Swiss standard-gauge route connecting the federal city of Bern with Neuchâtel, serving both regional and intercity passenger traffic.
  • D. Basel–Olten railway line
    The Basel–Olten railway line is a major Swiss rail corridor linking the city of Basel with the central hub of Olten, forming part of a key national and international transit route.
  • E. Vevey–Montreux railway line
    The Vevey–Montreux railway line is a Swiss standard-gauge rail route along the shores of Lake Geneva that connects the towns of Vevey and Montreux and forms part of an important regional and tourist transport corridor.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: formsSectionOf
Context triple: [Lausanne–Bern railway line, formsSectionOf, Lausanne–Olten main line]
  • A. section chosen
    Indicates that one entity is a distinct part, division, or segment of another entity within a larger whole.
  • B. sectionType
    Indicates the specific kind or category of section that an entity belongs to or represents.
  • C. formsDivisionWith
    Indicates that one entity combines with another to create or constitute a division or subgroup within a larger organization or structure.
  • D. operatorInSection
    Indicates that an operator is assigned to, works within, or is responsible for a specific section.
  • E. divisionOrStructure
    Indicates a relationship where one entity is an internal division, department, or structural subunit that is organizationally contained within another entity.
  • F. None of above.

Provenance (6 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_69bd441be7bc8190b530362d427b97d2 completed March 20, 2026, 12:57 p.m.
NER Named-entity recognition batch_69bd74249a8c8190952680aee06a9286 completed March 20, 2026, 4:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69beba546a1081909fe082663ad5e238 completed March 21, 2026, 3:33 p.m.
NEDg Description generation batch_69bebc21b21c8190ad1c234ecbb8d431 completed March 21, 2026, 3:41 p.m.
NED2 Entity disambiguation (via description) batch_69bebc71065881908b27a2808fc4e630 completed March 21, 2026, 3:42 p.m.
PD Predicate disambiguation batch_69bd71492dec8190af4c27a3043b35cc completed March 20, 2026, 4:09 p.m.
Created at: March 20, 2026, 1:34 p.m.