Triple
T16568414
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Grdelica train bombing |
E402521
|
entity |
| Predicate | trainOperator |
P20222
|
FINISHED |
| Object |
Serbian Railways
Serbian Railways is the national railway company of Serbia, responsible for operating the country’s passenger and freight rail transport network.
|
E1221487
|
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: Serbian Railways | Statement: [Grdelica train bombing, trainOperator, Serbian Railways]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Serbian Railways Context triple: [Grdelica train bombing, trainOperator, Serbian Railways]
-
A.
Serbian Railways Infrastructure
Serbian Railways Infrastructure is the state-owned company responsible for managing and maintaining Serbia’s national railway infrastructure network.
-
B.
Croatian Railways
Croatian Railways is Croatia’s national state-owned railway company responsible for operating passenger and freight rail services across the country.
-
C.
Bulgarian State Railways
Bulgarian State Railways is Bulgaria’s national railway company, responsible for operating the country’s passenger and freight train services.
-
D.
Belgrade suburban railway (BG Voz)
Belgrade suburban railway (BG Voz) is an urban rail system serving Belgrade and its surrounding municipalities, providing frequent commuter connections across the metropolitan area.
-
E.
HŽ Infrastruktura
HŽ Infrastruktura is the Croatian state-owned company responsible for managing and maintaining the country’s railway infrastructure network.
- 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: Serbian Railways Triple: [Grdelica train bombing, trainOperator, Serbian Railways]
Generated description
Serbian Railways is the national railway company of Serbia, responsible for operating the country’s passenger and freight rail transport network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Serbian Railways Target entity description: Serbian Railways is the national railway company of Serbia, responsible for operating the country’s passenger and freight rail transport network.
-
A.
Serbian Railways Infrastructure
Serbian Railways Infrastructure is the state-owned company responsible for managing and maintaining Serbia’s national railway infrastructure network.
-
B.
Croatian Railways
Croatian Railways is Croatia’s national state-owned railway company responsible for operating passenger and freight rail services across the country.
-
C.
Bulgarian State Railways
Bulgarian State Railways is Bulgaria’s national railway company, responsible for operating the country’s passenger and freight train services.
-
D.
Belgrade suburban railway (BG Voz)
Belgrade suburban railway (BG Voz) is an urban rail system serving Belgrade and its surrounding municipalities, providing frequent commuter connections across the metropolitan area.
-
E.
HŽ Infrastruktura
HŽ Infrastruktura is the Croatian state-owned company responsible for managing and maintaining the country’s railway infrastructure network.
- 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_69d8838648088190acf97ef11fc3f61b |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e35773c00c819091731bebc02a69bb |
completed | April 18, 2026, 10:05 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a006ee3dcbc819087ea66b262585232 |
completed | May 10, 2026, 11:41 a.m. |
| NEDg | Description generation | batch_6a006ff5bdb88190be90d7446e24b61f |
completed | May 10, 2026, 11:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a007088fd988190b3dfef081769d03e |
completed | May 10, 2026, 11:48 a.m. |
Created at: April 10, 2026, 5:16 a.m.