Triple
T12722537
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Frankfurt Eschenheimer Tor station |
E304020
|
entity |
| Predicate | servedByLine |
P1293
|
FINISHED |
| Object |
Frankfurt U-Bahn line U2
Frankfurt U-Bahn line U2 is a rapid transit route in Frankfurt am Main that connects the city center with several northern and northwestern suburbs as part of the city's underground rail 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 U2 | Statement: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U2 Context triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U2]
-
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 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.
-
C.
Hamburg U-Bahn line U2
Hamburg U-Bahn line U2 is a major rapid transit line in Hamburg’s underground network, running across the city to connect central districts with outlying residential areas such as Niendorf.
-
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 U2 Triple: [Frankfurt Eschenheimer Tor station, servedByLine, Frankfurt U-Bahn line U2]
Generated description
Frankfurt U-Bahn line U2 is a rapid transit route in Frankfurt am Main that connects the city center with several northern and northwestern suburbs as part of the city's underground rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Frankfurt U-Bahn line U2 Target entity description: Frankfurt U-Bahn line U2 is a rapid transit route in Frankfurt am Main that connects the city center with several northern and northwestern suburbs as part of the city's underground rail 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 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.
-
C.
Hamburg U-Bahn line U2
Hamburg U-Bahn line U2 is a major rapid transit line in Hamburg’s underground network, running across the city to connect central districts with outlying residential areas such as Niendorf.
-
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_69f746077b288190b8ca7927352a7904 |
completed | May 3, 2026, 12:56 p.m. |
| NEDg | Description generation | batch_69f749d6ce888190b4a07462e9b8a40e |
completed | May 3, 2026, 1:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f74a2fed2c8190b006575d88c01bdd |
completed | May 3, 2026, 1:14 p.m. |
Created at: April 9, 2026, 5:24 p.m.