Triple

T19117319
Position Surface form Disambiguated ID Type / Status
Subject Ui LRT E467938 entity
Predicate operator P179 FINISHED
Object UiTrans LRT Co., Ltd.
UiTrans LRT Co., Ltd. is the company responsible for operating Seoul’s Ui Light Rail Transit line.
 E1359241 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: UiTrans LRT Co., Ltd. | Statement: [Ui LRT, operator, UiTrans LRT Co., Ltd.]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: UiTrans LRT Co., Ltd.
Context triple: [Ui LRT, operator, UiTrans LRT Co., Ltd.]
  • A. SRT Electrified Train Company Limited
    SRT Electrified Train Company Limited is a subsidiary of Thailand’s national railway operator responsible for operating and managing electrified urban rail services, notably in the Bangkok metropolitan area.
  • B. Tama Toshi Monorail Co., Ltd.
    Tama Toshi Monorail Co., Ltd. is a Japanese transportation company that owns and operates the Tama Toshi Monorail Line serving the Tama area of western Tokyo.
  • C. Taoyuan Metro Corporation
    Taoyuan Metro Corporation is the public transit company responsible for operating and managing metro services in Taoyuan, Taiwan, including the line connecting to Taoyuan International Airport.
  • D. Osaka Monorail Co., Ltd.
    Osaka Monorail Co., Ltd. is the railway company that operates the Osaka Monorail transit system in Osaka Prefecture, Japan.
  • E. Busan Transportation Corporation
    Busan Transportation Corporation is the public company responsible for operating and managing the Busan Metro system in Busan, South Korea.
  • 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: UiTrans LRT Co., Ltd.
Triple: [Ui LRT, operator, UiTrans LRT Co., Ltd.]
Generated description
UiTrans LRT Co., Ltd. is the company responsible for operating Seoul’s Ui Light Rail Transit line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: UiTrans LRT Co., Ltd.
Target entity description: UiTrans LRT Co., Ltd. is the company responsible for operating Seoul’s Ui Light Rail Transit line.
  • A. SRT Electrified Train Company Limited
    SRT Electrified Train Company Limited is a subsidiary of Thailand’s national railway operator responsible for operating and managing electrified urban rail services, notably in the Bangkok metropolitan area.
  • B. Tama Toshi Monorail Co., Ltd.
    Tama Toshi Monorail Co., Ltd. is a Japanese transportation company that owns and operates the Tama Toshi Monorail Line serving the Tama area of western Tokyo.
  • C. Taoyuan Metro Corporation
    Taoyuan Metro Corporation is the public transit company responsible for operating and managing metro services in Taoyuan, Taiwan, including the line connecting to Taoyuan International Airport.
  • D. Osaka Monorail Co., Ltd.
    Osaka Monorail Co., Ltd. is the railway company that operates the Osaka Monorail transit system in Osaka Prefecture, Japan.
  • E. Busan Transportation Corporation
    Busan Transportation Corporation is the public company responsible for operating and managing the Busan Metro system in Busan, South Korea.
  • 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_69d8dd06a26481908039e2a1bae8c597 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5e399a6d8819090a9501ff1637b9d completed April 20, 2026, 8:28 a.m.
NED1 Entity disambiguation (via context triple) batch_6a05e671f2988190a74d53989124026b completed May 14, 2026, 3:12 p.m.
NEDg Description generation batch_6a05e9406ba48190a50f4ea6b413e1f4 completed May 14, 2026, 3:24 p.m.
NED2 Entity disambiguation (via description) batch_6a05e9c0d35081909b6ce3c287af5d5f completed May 14, 2026, 3:26 p.m.
Created at: April 10, 2026, 12:05 p.m.