Triple
T3817706
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Prague Metro |
E84295
|
entity |
| Predicate | hasRollingStock |
P1305
|
FINISHED |
| Object |
M1 trains
M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
|
E390333
|
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: M1 trains | Statement: [Prague Metro, hasRollingStock, M1 trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: M1 trains Context triple: [Prague Metro, hasRollingStock, M1 trains]
-
A.
M5 metro trains
M5 metro trains are a modern fleet of high-capacity, low-floor metro vehicles used on the Amsterdam Metro system, designed to improve comfort, accessibility, and efficiency.
-
B.
G1 trains
G1 trains are a modern fleet of electric multiple-unit subway trains operating on the Nuremberg U-Bahn system in Germany.
-
C.
L train
The L train is a New York City Subway service that runs crosstown along 14th Street in Manhattan and through Williamsburg and Bushwick in Brooklyn, known for its heavy ridership and role as a key connector between the boroughs.
-
D.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
-
E.
E train
The E train is a New York City Subway service that runs primarily along the IND Eighth Avenue Line, providing rapid transit between Queens and Manhattan.
- 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: M1 trains Triple: [Prague Metro, hasRollingStock, M1 trains]
Generated description
M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: M1 trains Target entity description: M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
-
A.
M5 metro trains
M5 metro trains are a modern fleet of high-capacity, low-floor metro vehicles used on the Amsterdam Metro system, designed to improve comfort, accessibility, and efficiency.
-
B.
G1 trains
G1 trains are a modern fleet of electric multiple-unit subway trains operating on the Nuremberg U-Bahn system in Germany.
-
C.
L train
The L train is a New York City Subway service that runs crosstown along 14th Street in Manhattan and through Williamsburg and Bushwick in Brooklyn, known for its heavy ridership and role as a key connector between the boroughs.
-
D.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
-
E.
E train
The E train is a New York City Subway service that runs primarily along the IND Eighth Avenue Line, providing rapid transit between Queens and Manhattan.
- 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_69aed931f5908190be2c07af66d4df25 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aeea5e41ec81908ed7e1ccc2713622 |
completed | March 9, 2026, 3:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b4fb43e1d481909a5b52cae5686179 |
completed | March 14, 2026, 6:08 a.m. |
| NEDg | Description generation | batch_69b4fcec1cf48190aa0b128acb56c089 |
completed | March 14, 2026, 6:15 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b4fd4d55248190bf4ef442a9991edf |
completed | March 14, 2026, 6:16 a.m. |
Created at: March 9, 2026, 3:17 p.m.