Triple

T12454409
Position Surface form Disambiguated ID Type / Status
Subject Rhine-Main S-Bahn E297618 entity
Predicate rollingStock P1305 FINISHED
Object DB Class 420 (former)
The DB Class 420 is a series of electric multiple units that formerly provided high-frequency commuter and S-Bahn services in several German metropolitan regions.
 E983304 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: DB Class 420 (former) | Statement: [Rhine-Main S-Bahn, rollingStock, DB Class 420 (former)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: DB Class 420 (former)
Context triple: [Rhine-Main S-Bahn, rollingStock, DB Class 420 (former)]
  • A. DB Class 423 EMU
    The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
  • B. DB Class 430 EMU
    The DB Class 430 EMU is a modern electric multiple unit used by Deutsche Bahn for high-frequency suburban and S-Bahn commuter services in Germany.
  • C. DBAG Class 480
    The DBAG Class 480 is a series of electric multiple units used primarily for S-Bahn commuter rail services in Berlin, Germany.
  • D. DBAG Class 484
    The DBAG Class 484 is a modern electric multiple unit train used for Berlin S-Bahn commuter services in Germany.
  • E. DBAG Class 483
    The DBAG Class 483 is a modern electric multiple unit train type used by Deutsche Bahn for S-Bahn commuter services in Germany.
  • 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: DB Class 420 (former)
Triple: [Rhine-Main S-Bahn, rollingStock, DB Class 420 (former)]
Generated description
The DB Class 420 is a series of electric multiple units that formerly provided high-frequency commuter and S-Bahn services in several German metropolitan regions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: DB Class 420 (former)
Target entity description: The DB Class 420 is a series of electric multiple units that formerly provided high-frequency commuter and S-Bahn services in several German metropolitan regions.
  • A. DB Class 423 EMU
    The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
  • B. DB Class 430 EMU
    The DB Class 430 EMU is a modern electric multiple unit used by Deutsche Bahn for high-frequency suburban and S-Bahn commuter services in Germany.
  • C. DBAG Class 480
    The DBAG Class 480 is a series of electric multiple units used primarily for S-Bahn commuter rail services in Berlin, Germany.
  • D. DBAG Class 484
    The DBAG Class 484 is a modern electric multiple unit train used for Berlin S-Bahn commuter services in Germany.
  • E. DBAG Class 483
    The DBAG Class 483 is a modern electric multiple unit train type used by Deutsche Bahn for S-Bahn commuter services in Germany.
  • 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_69d6ada166c48190b902972cd2408fa3 completed April 8, 2026, 7:33 p.m.
NER Named-entity recognition batch_69d94da0b5988190b9df26dd3bb87337 completed April 10, 2026, 7:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69f63f190c788190adceaab8117d52a6 completed May 2, 2026, 6:14 p.m.
NEDg Description generation batch_69f6405f9f6481909bcc3b2e3deeae7e completed May 2, 2026, 6:20 p.m.
NED2 Entity disambiguation (via description) batch_69f6416ba1bc8190a772bffe4d83ec15 completed May 2, 2026, 6:24 p.m.
Created at: April 8, 2026, 9:56 p.m.