Triple

T37129987
Position Surface form Disambiguated ID Type / Status
Subject Southern Islands of Singapore E919490 entity
Predicate containsLandfill P203411 FINISHED
Object Semakau Landfill
Semakau Landfill is Singapore’s first and only offshore landfill, engineered on reclaimed land to manage the nation’s solid waste while preserving surrounding marine habitats.
 E2214783 NE FINISHED

How this triple was built (3 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: Semakau Landfill | Statement: [Southern Islands of Singapore, containsLandfill, Semakau Landfill]
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: Semakau Landfill
Triple: [Southern Islands of Singapore, containsLandfill, Semakau Landfill]
Generated description
Semakau Landfill is Singapore’s first and only offshore landfill, engineered on reclaimed land to manage the nation’s solid waste while preserving surrounding marine habitats.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: containsLandfill
Context triple: [Southern Islands of Singapore, containsLandfill, Semakau Landfill]
  • A. landfilledFrom
    Indicates that material, waste, or items originate from a specified source and are disposed of by being placed into a landfill at the target location.
  • B. containsWasteFrom
    Indicates that one entity holds, includes, or is contaminated by waste originating from another entity.
  • C. typeOfWasteCovered
    Indicates the specific category or kind of waste material that is included or addressed within a given context, agreement, or regulation.
  • D. wasteManagementFacility
    Indicates a facility where waste materials are collected, processed, treated, or disposed of as part of a waste management system.
  • E. hasRecyclingReceptacles
    Indicates that recycling receptacles are present and available for use at or within the referenced entity.
  • F. None of above. chosen

Provenance (7 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_69f76e9d13e48190a108f7fbf80ff375 completed May 3, 2026, 3:49 p.m.
NER Named-entity recognition batch_6a017590e01c8190b985bb50cc6cd605 completed May 11, 2026, 6:22 a.m.
NED1 Entity disambiguation (via context triple) batch_6a3f6a21c2d4819094c6278adb72d61e completed June 27, 2026, 6:13 a.m.
NEDg Description generation batch_6a3f6ab571688190af49b225e0aeeca6 completed June 27, 2026, 6:16 a.m.
NED2 Entity disambiguation (via description) batch_6a3ffa2256708190942bb44328d3ea0b completed June 27, 2026, 4:28 p.m.
PD Predicate disambiguation batch_6a0175406b348190a5809b5f3497d46f completed May 11, 2026, 6:20 a.m.
PDg Predicate description generation batch_6a01758ff6d0819087730892b3ea1c75 completed May 11, 2026, 6:22 a.m.
Created at: May 3, 2026, 4:15 p.m.