Triple

T1461518
Position Surface form Disambiguated ID Type / Status
Subject Potsdamer Platz E31521 entity
Predicate hasBuilding P105 FINISHED
Object BahnTower
BahnTower is a prominent high-rise office building in Berlin that serves as the headquarters of Deutsche Bahn and forms part of the modern Potsdamer Platz complex.
 E166641 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: BahnTower | Statement: [Potsdamer Platz, hasBuilding, BahnTower]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BahnTower
Context triple: [Potsdamer Platz, hasBuilding, BahnTower]
  • A. Berlin Ostbahnhof
    Berlin Ostbahnhof is one of Berlin’s main railway hubs, serving long-distance, regional, and S-Bahn trains in the eastern part of the city.
  • B. Südkreuz station
    Südkreuz station is a major Berlin transport hub serving regional, long-distance, and S-Bahn trains in the southern part of the city.
  • C. Berlin Hauptbahnhof
    Berlin Hauptbahnhof is the main railway station in Berlin and one of Europe’s largest and most important rail hubs, serving extensive regional, national, and international connections.
  • D. Frankfurt Hauptwache station
    Frankfurt Hauptwache station is a major central transport hub in Frankfurt am Main, Germany, serving numerous S-Bahn and U-Bahn lines as well as regional and local services.
  • E. Nürnberg Hauptbahnhof
    Nürnberg Hauptbahnhof is the main railway station and a central public transport hub in Nuremberg, Germany, serving regional, long-distance, and urban transit including the U-Bahn network.
  • 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: BahnTower
Triple: [Potsdamer Platz, hasBuilding, BahnTower]
Generated description
BahnTower is a prominent high-rise office building in Berlin that serves as the headquarters of Deutsche Bahn and forms part of the modern Potsdamer Platz complex.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: BahnTower
Target entity description: BahnTower is a prominent high-rise office building in Berlin that serves as the headquarters of Deutsche Bahn and forms part of the modern Potsdamer Platz complex.
  • A. Berlin Ostbahnhof
    Berlin Ostbahnhof is one of Berlin’s main railway hubs, serving long-distance, regional, and S-Bahn trains in the eastern part of the city.
  • B. Südkreuz station
    Südkreuz station is a major Berlin transport hub serving regional, long-distance, and S-Bahn trains in the southern part of the city.
  • C. Berlin Hauptbahnhof
    Berlin Hauptbahnhof is the main railway station in Berlin and one of Europe’s largest and most important rail hubs, serving extensive regional, national, and international connections.
  • D. Frankfurt Hauptwache station
    Frankfurt Hauptwache station is a major central transport hub in Frankfurt am Main, Germany, serving numerous S-Bahn and U-Bahn lines as well as regional and local services.
  • E. Nürnberg Hauptbahnhof
    Nürnberg Hauptbahnhof is the main railway station and a central public transport hub in Nuremberg, Germany, serving regional, long-distance, and urban transit including the U-Bahn network.
  • 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_69a49917dfc081909acdbdf5d684f1ef completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c59ecb60819082217b034e18381f completed March 1, 2026, 11:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad0e7ab538819090bc3e3ed1bbff64 completed March 8, 2026, 5:51 a.m.
NEDg Description generation batch_69ad0f5106fc8190ab03c4e5a0287424 completed March 8, 2026, 5:55 a.m.
NED2 Entity disambiguation (via description) batch_69ad0fa4c7d48190ac84267c16c6eb00 completed March 8, 2026, 5:56 a.m.
Created at: March 1, 2026, 8 p.m.