Triple
T15551436
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Budapest tram network |
E370752
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object |
Tatra T5C5
The Tatra T5C5 is a type of articulated tramcar built by ČKD Tatra that has long served as a primary workhorse on Budapest’s tram network.
|
E1163581
|
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: Tatra T5C5 | Statement: [Budapest tram network, usesRollingStock, Tatra T5C5]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tatra T5C5 Context triple: [Budapest tram network, usesRollingStock, Tatra T5C5]
-
A.
Tatra 815
The Tatra 815 is a heavy-duty Czech all-wheel-drive truck platform widely used for both military applications and commercial transport.
-
B.
ČKD Tatra
ČKD Tatra was a major Czechoslovak tram and rail vehicle manufacturer best known for producing large numbers of robust Tatra streetcars widely used across Central and Eastern Europe.
-
C.
Tatra T2 tram
The Tatra T2 tram is a mid-20th-century Czechoslovak streetcar model that adapted and localized the American PCC design for use across Eastern European urban transit systems.
-
D.
Tatra T3 tram
The Tatra T3 tram is a widely produced and iconic Czechoslovakian streetcar model, renowned for its robust design and extensive use across Eastern Europe and the former Soviet bloc.
-
E.
Tatra automobile factory
The Tatra automobile factory is a historic Czech manufacturer renowned for its innovative, often air-cooled vehicles and heavy trucks, and is one of the oldest car makers in the world.
- 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: Tatra T5C5 Triple: [Budapest tram network, usesRollingStock, Tatra T5C5]
Generated description
The Tatra T5C5 is a type of articulated tramcar built by ČKD Tatra that has long served as a primary workhorse on Budapest’s tram network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tatra T5C5 Target entity description: The Tatra T5C5 is a type of articulated tramcar built by ČKD Tatra that has long served as a primary workhorse on Budapest’s tram network.
-
A.
Tatra 815
The Tatra 815 is a heavy-duty Czech all-wheel-drive truck platform widely used for both military applications and commercial transport.
-
B.
ČKD Tatra
ČKD Tatra was a major Czechoslovak tram and rail vehicle manufacturer best known for producing large numbers of robust Tatra streetcars widely used across Central and Eastern Europe.
-
C.
Tatra T2 tram
The Tatra T2 tram is a mid-20th-century Czechoslovak streetcar model that adapted and localized the American PCC design for use across Eastern European urban transit systems.
-
D.
Tatra T3 tram
The Tatra T3 tram is a widely produced and iconic Czechoslovakian streetcar model, renowned for its robust design and extensive use across Eastern Europe and the former Soviet bloc.
-
E.
Tatra automobile factory
The Tatra automobile factory is a historic Czech manufacturer renowned for its innovative, often air-cooled vehicles and heavy trucks, and is one of the oldest car makers in the world.
- 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_69d85cc6cf40819091f4a5facee1ebe6 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04a9551288190a583e8291c35f521 |
completed | April 16, 2026, 2:33 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff4560008c81908ebd278c3dc45045 |
completed | May 9, 2026, 2:32 p.m. |
| NEDg | Description generation | batch_69ff47aa0bb081908f67e9dae9bc7b27 |
completed | May 9, 2026, 2:41 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff480d81b881908eb3a51f1e7280b0 |
completed | May 9, 2026, 2:43 p.m. |
Created at: April 10, 2026, 4:08 a.m.