Triple

T7366912
Position Surface form Disambiguated ID Type / Status
Subject Potsdamer Platz station E169892 entity
Predicate railwayLineServed P848 FINISHED
Object Berlin U-Bahn line U2
Berlin U-Bahn line U2 is one of the main metro lines in Berlin, running east–west across the city and connecting key central districts and landmarks.
E660283 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: Berlin U-Bahn line U2 | Statement: [Potsdamer Platz station, railwayLineServed, Berlin U-Bahn line U2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Berlin U-Bahn line U2
Context triple: [Potsdamer Platz station, railwayLineServed, Berlin U-Bahn line U2]
  • A. Berlin U-Bahn line U6
    Berlin U-Bahn line U6 is a major north–south underground metro line in Berlin that connects the northern district of Tegel with southern neighborhoods through the city center.
  • B. 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.
  • C. Berlin U-Bahn line U7
    Berlin U-Bahn line U7 is one of the city's major underground metro lines, running in a long east–west arc across numerous districts and serving as a key backbone of Berlin’s public transport network.
  • D. Berlin U-Bahn line U4
    Berlin U-Bahn line U4 is one of the shortest and oldest lines in Berlin’s subway network, running entirely within the Schöneberg district and connecting a small number of central stations.
  • E. Berlin U-Bahn
    The Berlin U-Bahn is the German capital’s extensive underground rapid transit system, forming a core part of its public transportation 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: Berlin U-Bahn line U2
Triple: [Potsdamer Platz station, railwayLineServed, Berlin U-Bahn line U2]
Generated description
Berlin U-Bahn line U2 is one of the main metro lines in Berlin, running east–west across the city and connecting key central districts and landmarks.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Berlin U-Bahn line U2
Target entity description: Berlin U-Bahn line U2 is one of the main metro lines in Berlin, running east–west across the city and connecting key central districts and landmarks.
  • A. Berlin U-Bahn line U6
    Berlin U-Bahn line U6 is a major north–south underground metro line in Berlin that connects the northern district of Tegel with southern neighborhoods through the city center.
  • B. 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.
  • C. Berlin U-Bahn line U7
    Berlin U-Bahn line U7 is one of the city's major underground metro lines, running in a long east–west arc across numerous districts and serving as a key backbone of Berlin’s public transport network.
  • D. Berlin U-Bahn line U4
    Berlin U-Bahn line U4 is one of the shortest and oldest lines in Berlin’s subway network, running entirely within the Schöneberg district and connecting a small number of central stations.
  • E. Berlin U-Bahn
    The Berlin U-Bahn is the German capital’s extensive underground rapid transit system, forming a core part of its public transportation 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_69c68a5ade988190885b7175f63b7534 completed March 27, 2026, 1:47 p.m.
NER Named-entity recognition batch_69c6f17ea0608190955ac3474f6da7bb completed March 27, 2026, 9:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69c802bc25908190ad444de63b7526a0 completed March 28, 2026, 4:33 p.m.
NEDg Description generation batch_69c8055ea7ec8190ba58ff8dfb3569da completed March 28, 2026, 4:44 p.m.
NED2 Entity disambiguation (via description) batch_69c805bc798c81909614bb966196b4ee completed March 28, 2026, 4:45 p.m.
Created at: March 27, 2026, 3:06 p.m.