Triple
T15330748
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Linz tramway network |
E366524
|
entity |
| Predicate | hasRollingStock |
P1305
|
FINISHED |
| Object |
Ulf-type low-floor tram
The Ulf-type low-floor tram is a modern, fully accessible tram design featuring a low-floor configuration for easy boarding and improved passenger comfort.
|
E1150053
|
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: Ulf-type low-floor tram | Statement: [Linz tramway network, hasRollingStock, Ulf-type low-floor tram]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ulf-type low-floor tram Context triple: [Linz tramway network, hasRollingStock, Ulf-type low-floor tram]
-
A.
Bombardier Flexity trams
Bombardier Flexity trams are a family of modern, low-floor light rail vehicles designed for urban public transport systems worldwide.
-
B.
Hyundai Rotem low-floor tram
The Hyundai Rotem low-floor tram is a modern, accessible light-rail vehicle designed for urban public transport, featuring a low-floor design for easy boarding and efficient passenger flow.
-
C.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
-
D.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
E.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
- 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: Ulf-type low-floor tram Triple: [Linz tramway network, hasRollingStock, Ulf-type low-floor tram]
Generated description
The Ulf-type low-floor tram is a modern, fully accessible tram design featuring a low-floor configuration for easy boarding and improved passenger comfort.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ulf-type low-floor tram Target entity description: The Ulf-type low-floor tram is a modern, fully accessible tram design featuring a low-floor configuration for easy boarding and improved passenger comfort.
-
A.
Bombardier Flexity trams
Bombardier Flexity trams are a family of modern, low-floor light rail vehicles designed for urban public transport systems worldwide.
-
B.
Hyundai Rotem low-floor tram
The Hyundai Rotem low-floor tram is a modern, accessible light-rail vehicle designed for urban public transport, featuring a low-floor design for easy boarding and efficient passenger flow.
-
C.
Stadler Tango trams
Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
-
D.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
E.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
- 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_69d85a121520819093dcce999fdefe1a |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e03e0161ac8190aa1d52c063c02ad0 |
completed | April 16, 2026, 1:40 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fef8b1b2d08190a158bf65535ad750 |
completed | May 9, 2026, 9:04 a.m. |
| NEDg | Description generation | batch_69fefb10ba78819094948f5401702e79 |
completed | May 9, 2026, 9:14 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69fefbad7de08190aa2479ec0243e3a6 |
completed | May 9, 2026, 9:17 a.m. |
Created at: April 10, 2026, 3:17 a.m.