Triple

T1371165
Position Surface form Disambiguated ID Type / Status
Subject Flinders Street Station E30114 entity
Predicate servedBy P82 FINISHED
Object Mernda line
The Mernda line is a suburban railway line in Melbourne, Australia, running from the central business district to the northeastern suburb of Mernda as part of the city’s metropolitan train network.
 E168461 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: Mernda line | Statement: [Flinders Street Station, servedBy, Mernda line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mernda line
Context triple: [Flinders Street Station, servedBy, Mernda line]
  • A. Werribee line
    The Werribee line is a suburban railway line in Melbourne, Australia, that runs from the central business district to the southwestern suburb of Werribee as part of the city’s metropolitan train network.
  • B. Pakenham line
    The Pakenham line is a suburban railway line in Melbourne, Australia, running from the central business district to the southeastern suburb of Pakenham as part of the city’s metropolitan train network.
  • C. Cranbourne line
    The Cranbourne line is a suburban railway line in Melbourne, Australia, running from the central business district to the southeastern suburb of Cranbourne as part of the city’s metropolitan train network.
  • D. Frankston line
    The Frankston line is a major suburban railway line in Melbourne, Australia, running from the central business district to the bayside suburb of Frankston.
  • E. Sunbury line
    The Sunbury line is a suburban railway line in Melbourne, Australia, running between Sunbury in the northwest and the central business district.
  • 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: Mernda line
Triple: [Flinders Street Station, servedBy, Mernda line]
Generated description
The Mernda line is a suburban railway line in Melbourne, Australia, running from the central business district to the northeastern suburb of Mernda as part of the city’s metropolitan train network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mernda line
Target entity description: The Mernda line is a suburban railway line in Melbourne, Australia, running from the central business district to the northeastern suburb of Mernda as part of the city’s metropolitan train network.
  • A. Werribee line
    The Werribee line is a suburban railway line in Melbourne, Australia, that runs from the central business district to the southwestern suburb of Werribee as part of the city’s metropolitan train network.
  • B. Pakenham line
    The Pakenham line is a suburban railway line in Melbourne, Australia, running from the central business district to the southeastern suburb of Pakenham as part of the city’s metropolitan train network.
  • C. Cranbourne line
    The Cranbourne line is a suburban railway line in Melbourne, Australia, running from the central business district to the southeastern suburb of Cranbourne as part of the city’s metropolitan train network.
  • D. Frankston line
    The Frankston line is a major suburban railway line in Melbourne, Australia, running from the central business district to the bayside suburb of Frankston.
  • E. Sunbury line
    The Sunbury line is a suburban railway line in Melbourne, Australia, running between Sunbury in the northwest and the central business district.
  • 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_69a498f912008190a376a98b207b2071 completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c2f314c081909c0ab80397d96abb completed March 1, 2026, 10:51 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad1596d1c8819081e65469302873ba completed March 8, 2026, 6:22 a.m.
NEDg Description generation batch_69ad160dd8ec8190a3c1cab5158c3e74 completed March 8, 2026, 6:24 a.m.
NED2 Entity disambiguation (via description) batch_69ad1672eea08190a37c99aedf012fd5 completed March 8, 2026, 6:25 a.m.
Created at: March 1, 2026, 7:57 p.m.