Triple

T12722538
Position Surface form Disambiguated ID Type / Status
Subject Frankfurt Eschenheimer Tor station E304020 entity
Predicate servedByLine P1293 FINISHED
Object Frankfurt U-Bahn line U3
Frankfurt U-Bahn line U3 is a rapid transit line of the Frankfurt am Main underground network that runs from the city center into the northern suburbs, serving key stations including Eschenheimer Tor.
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 U3 | Statement: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U3]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U3
Context triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U3]
  • 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. Hamburg U-Bahn line U3
    Hamburg U-Bahn line U3 is a historic circular metro line that runs largely above ground, offering key transit service and scenic views through central and harbor areas of Hamburg.
  • C. U-Bahn line U3
    U-Bahn line U3 is a Berlin U-Bahn metro line that runs across the southwestern part of the city, connecting residential districts with central transport hubs.
  • D. Nuremberg U-Bahn
    The Nuremberg U-Bahn is the rapid transit system serving Nuremberg and its surrounding area in Germany, known for being one of the first networks to operate fully automated driverless trains.
  • E. Berlin U-Bahn line U5
    Berlin U-Bahn line U5 is a major underground metro line in Berlin that runs east–west across the city, connecting central hubs like Alexanderplatz and Brandenburger Tor with eastern districts such as Lichtenberg and Hönow.
  • 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 U3
Triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U3]
Generated description
Frankfurt U-Bahn line U3 is a rapid transit line of the Frankfurt am Main underground network that runs from the city center into the northern suburbs, serving key stations including Eschenheimer Tor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U3
Target entity description: Frankfurt U-Bahn line U3 is a rapid transit line of the Frankfurt am Main underground network that runs from the city center into the northern suburbs, serving key stations including Eschenheimer Tor.
  • 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. Hamburg U-Bahn line U3
    Hamburg U-Bahn line U3 is a historic circular metro line that runs largely above ground, offering key transit service and scenic views through central and harbor areas of Hamburg.
  • C. U-Bahn line U3
    U-Bahn line U3 is a Berlin U-Bahn metro line that runs across the southwestern part of the city, connecting residential districts with central transport hubs.
  • D. Nuremberg U-Bahn
    The Nuremberg U-Bahn is the rapid transit system serving Nuremberg and its surrounding area in Germany, known for being one of the first networks to operate fully automated driverless trains.
  • E. Berlin U-Bahn line U5
    Berlin U-Bahn line U5 is a major underground metro line in Berlin that runs east–west across the city, connecting central hubs like Alexanderplatz and Brandenburger Tor with eastern districts such as Lichtenberg and Hönow.
  • 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_69f75467a1a081908395b48615e3ea9b completed May 3, 2026, 1:57 p.m.
NEDg Description generation batch_69f755c1ae38819092b35aa405cfd496 completed May 3, 2026, 2:03 p.m.
NED2 Entity disambiguation (via description) batch_69f7562d686c819091d8ee2b47e3529c completed May 3, 2026, 2:05 p.m.
Created at: April 9, 2026, 5:24 p.m.