Triple

T16568434
Position Surface form Disambiguated ID Type / Status
Subject Grdelica train bombing E402521 entity
Predicate railwayTraffic P19355 FINISHED
Object Belgrade–Thessaloniki corridor
The Belgrade–Thessaloniki corridor is a major international rail route linking Serbia’s capital with Greece’s second-largest city, forming a key segment of the broader north–south transport network in the Balkans.
E1225070 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: Belgrade–Thessaloniki corridor | Statement: [Grdelica train bombing, railwayTraffic, Belgrade–Thessaloniki corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Belgrade–Thessaloniki corridor
Context triple: [Grdelica train bombing, railwayTraffic, Belgrade–Thessaloniki corridor]
  • A. Belgrade–Niš highway
    The Belgrade–Niš highway is a major Serbian motorway that connects the capital Belgrade with the city of Niš, forming a key segment of the country’s primary north–south transport corridor.
  • B. Belgrade–Smederevo road
    The Belgrade–Smederevo road is a major regional roadway in Serbia that links the capital city Belgrade with the historic city of Smederevo along the Danube corridor.
  • C. Belgrade–Valjevo road corridor
    The Belgrade–Valjevo road corridor is a key regional transport route in Serbia that links the capital Belgrade with the city of Valjevo and intermediate municipalities such as Lazarevac.
  • D. Belgrade–Skopje railway line
    The Belgrade–Skopje railway line is a major international rail route connecting the capitals of Serbia and North Macedonia, serving as a key transport corridor in the Balkans.
  • E. Niš–Skopje railway
    The Niš–Skopje railway is an international rail line connecting the city of Niš in Serbia with Skopje in North Macedonia, serving as a key transport corridor in the central Balkans.
  • 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: Belgrade–Thessaloniki corridor
Triple: [Grdelica train bombing, railwayTraffic, Belgrade–Thessaloniki corridor]
Generated description
The Belgrade–Thessaloniki corridor is a major international rail route linking Serbia’s capital with Greece’s second-largest city, forming a key segment of the broader north–south transport network in the Balkans.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Belgrade–Thessaloniki corridor
Target entity description: The Belgrade–Thessaloniki corridor is a major international rail route linking Serbia’s capital with Greece’s second-largest city, forming a key segment of the broader north–south transport network in the Balkans.
  • A. Belgrade–Niš highway
    The Belgrade–Niš highway is a major Serbian motorway that connects the capital Belgrade with the city of Niš, forming a key segment of the country’s primary north–south transport corridor.
  • B. Belgrade–Smederevo road
    The Belgrade–Smederevo road is a major regional roadway in Serbia that links the capital city Belgrade with the historic city of Smederevo along the Danube corridor.
  • C. Belgrade–Valjevo road corridor
    The Belgrade–Valjevo road corridor is a key regional transport route in Serbia that links the capital Belgrade with the city of Valjevo and intermediate municipalities such as Lazarevac.
  • D. Belgrade–Skopje railway line
    The Belgrade–Skopje railway line is a major international rail route connecting the capitals of Serbia and North Macedonia, serving as a key transport corridor in the Balkans.
  • E. Niš–Skopje railway
    The Niš–Skopje railway is an international rail line connecting the city of Niš in Serbia with Skopje in North Macedonia, serving as a key transport corridor in the central Balkans.
  • 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_6a007da4b60c8190a682d20aa881792c completed May 10, 2026, 12:44 p.m.
NEDg Description generation batch_6a00805a84388190ac989129745e8234 completed May 10, 2026, 12:55 p.m.
NED2 Entity disambiguation (via description) batch_6a0080abae0c81908c827dced1b56aa6 completed May 10, 2026, 12:57 p.m.
Created at: April 10, 2026, 5:16 a.m.