Triple

T12722536
Position Surface form Disambiguated ID Type / Status
Subject Frankfurt Eschenheimer Tor station E304020 entity
Predicate servedByLine P1293 FINISHED
Object Frankfurt U-Bahn line U1
Frankfurt U-Bahn line U1 is a rapid transit route in Frankfurt am Main that runs through the city’s northern districts into the center as part of the core U-Bahn network.
E301853 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: Frankfurt U-Bahn line U1 | Statement: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U1]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U1
Context triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U1]
  • A. Frankfurt U-Bahn
    The Frankfurt U-Bahn is the rapid transit system serving Frankfurt am Main, Germany, forming a core part of the city's public transportation network with multiple underground and surface lines.
  • B. Berlin U-Bahn line U1
    Berlin U-Bahn line U1 is one of the oldest and most central lines in Berlin’s subway network, running predominantly east–west across the inner city and serving several major commercial and tourist areas.
  • C. U-Bahn line U1
    U-Bahn line U1 is one of Berlin’s oldest and most central underground lines, running mainly east–west and connecting key inner-city districts including Friedrichshain and Kreuzberg.
  • D. Hamburg U-Bahn line U1
    Hamburg U-Bahn line U1 is a major rapid transit line in Hamburg’s underground network, running from the city center through several northern and northeastern districts to suburban areas.
  • E. S7 Line
    The S7 Line is a suburban rapid transit line of the Nanjing Metro serving outlying districts to the south of Nanjing, China.
  • 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: Frankfurt U-Bahn line U1
Triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U1]
Generated description
Frankfurt U-Bahn line U1 is a rapid transit route in Frankfurt am Main that runs through the city’s northern districts into the center as part of the core U-Bahn network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U1
Target entity description: Frankfurt U-Bahn line U1 is a rapid transit route in Frankfurt am Main that runs through the city’s northern districts into the center as part of the core U-Bahn network.
  • A. Frankfurt U-Bahn chosen
    The Frankfurt U-Bahn is the rapid transit system serving Frankfurt am Main, Germany, forming a core part of the city's public transportation network with multiple underground and surface lines.
  • B. Berlin U-Bahn line U1
    Berlin U-Bahn line U1 is one of the oldest and most central lines in Berlin’s subway network, running predominantly east–west across the inner city and serving several major commercial and tourist areas.
  • C. U-Bahn line U1
    U-Bahn line U1 is one of Berlin’s oldest and most central underground lines, running mainly east–west and connecting key inner-city districts including Friedrichshain and Kreuzberg.
  • D. Hamburg U-Bahn line U1
    Hamburg U-Bahn line U1 is a major rapid transit line in Hamburg’s underground network, running from the city center through several northern and northeastern districts to suburban areas.
  • E. S7 Line
    The S7 Line is a suburban rapid transit line of the Nanjing Metro serving outlying districts to the south of Nanjing, China.
  • F. None of above.

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_69d7bdf084148190ab9d513dc0735af4 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d964133fe481909a44b8159ab8997b completed April 10, 2026, 8:56 p.m.
NED1 Entity disambiguation (via context triple) batch_69f739688734819092b14bd3edacd4ef completed May 3, 2026, 12:02 p.m.
NEDg Description generation batch_69f73ba2ae5c8190a17c71ce0df0eaf4 completed May 3, 2026, 12:12 p.m.
NED2 Entity disambiguation (via description) batch_69f73bdb099c8190a90654709d33ccbf completed May 3, 2026, 12:13 p.m.
Created at: April 9, 2026, 5:24 p.m.