Triple
T21122769
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tatra KT8D5 |
E520472
|
entity |
| Predicate | hasVariant |
P455
|
FINISHED |
| Object | Tatra KT8D5N |
—
|
NE NERFINISHED |
How this triple was built (2 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 KT8D5N | Statement: [Tatra KT8D5, hasVariant, Tatra KT8D5N]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tatra KT8D5N Context triple: [Tatra KT8D5, hasVariant, Tatra KT8D5N]
-
A.
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.
-
B.
Tatra 815
The Tatra 815 is a heavy-duty Czech all-wheel-drive truck platform widely used for both military applications and commercial transport.
-
C.
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.
-
D.
Tatra KT8D5 tram
chosen
The Tatra KT8D5 tram is a high-floor, articulated tramcar model produced in Czechoslovakia in the 1980s, widely used in several Central and Eastern European cities.
-
E.
Tatra K2 tram
The Tatra K2 tram is a high-capacity articulated tramcar of Czechoslovak design that has been widely used in several Central and Eastern European cities.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b50a623881909c0bbaf4f2c055e7 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e7223587008190a2b35ea06cf6508b |
completed | April 21, 2026, 7:07 a.m. |
Created at: April 16, 2026, 2:55 p.m.