Triple
T16089495
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line A (Prague Metro) |
E390322
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object |
Prague Metro 81-71M trains
Prague Metro 81-71M trains are a modernized series of Soviet-designed 81-71 metro cars refurbished for improved performance, safety, and passenger comfort on Prague’s underground network.
|
E1192858
|
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: Prague Metro 81-71M trains | Statement: [Line A (Prague Metro), usesRollingStock, Prague Metro 81-71M trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Prague Metro 81-71M trains Context triple: [Line A (Prague Metro), usesRollingStock, Prague Metro 81-71M trains]
-
A.
Prague commuter rail
The Prague commuter rail is a suburban rail network that links Prague with its surrounding metropolitan area, providing frequent regional train services that complement the city’s urban transit system.
-
B.
Prague Metro
The Prague Metro is the rapid transit system serving the Czech capital, known for its three main lines, deep underground stations, and role as the backbone of the city's public transportation network.
-
C.
Prague trams
Prague trams are an extensive electric streetcar network that forms a core part of Prague’s public transport system, serving both central and outlying districts.
-
D.
Prague public transport network
The Prague public transport network is an extensive integrated system of metro lines, trams, buses, ferries, and funiculars that provides comprehensive urban and suburban transit throughout the Czech capital and its surrounding areas.
-
E.
81-740 Rusich metro train
The 81-740 "Rusich" is a series of modern articulated metro trains widely used on Russian and some CIS urban rail systems, known for their improved passenger comfort and suitability for harsh climates.
- 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: Prague Metro 81-71M trains Triple: [Line A (Prague Metro), usesRollingStock, Prague Metro 81-71M trains]
Generated description
Prague Metro 81-71M trains are a modernized series of Soviet-designed 81-71 metro cars refurbished for improved performance, safety, and passenger comfort on Prague’s underground network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Prague Metro 81-71M trains Target entity description: Prague Metro 81-71M trains are a modernized series of Soviet-designed 81-71 metro cars refurbished for improved performance, safety, and passenger comfort on Prague’s underground network.
-
A.
Prague commuter rail
The Prague commuter rail is a suburban rail network that links Prague with its surrounding metropolitan area, providing frequent regional train services that complement the city’s urban transit system.
-
B.
Prague Metro
The Prague Metro is the rapid transit system serving the Czech capital, known for its three main lines, deep underground stations, and role as the backbone of the city's public transportation network.
-
C.
Prague trams
Prague trams are an extensive electric streetcar network that forms a core part of Prague’s public transport system, serving both central and outlying districts.
-
D.
Prague public transport network
The Prague public transport network is an extensive integrated system of metro lines, trams, buses, ferries, and funiculars that provides comprehensive urban and suburban transit throughout the Czech capital and its surrounding areas.
-
E.
81-740 Rusich metro train
The 81-740 "Rusich" is a series of modern articulated metro trains widely used on Russian and some CIS urban rail systems, known for their improved passenger comfort and suitability for harsh climates.
- 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_69d87f198bc48190a8b7e53ca15b7ead |
completed | April 10, 2026, 4:39 a.m. |
| NER | Named-entity recognition | batch_69e1845161908190adca2af94710b2cc |
completed | April 17, 2026, 12:52 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffe490d494819081f812811f032702 |
completed | May 10, 2026, 1:51 a.m. |
| NEDg | Description generation | batch_69ffe63f757c81908c7dc3c5ae3075c6 |
completed | May 10, 2026, 1:58 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ffe6b3f25481908dd4b6108b5d95c0 |
completed | May 10, 2026, 2 a.m. |
Created at: April 10, 2026, 4:59 a.m.