Triple

T7508630
Position Surface form Disambiguated ID Type / Status
Subject Tuas E177456 entity
Predicate roadAccess P385 FINISHED
Object Pan Island Expressway
The Pan Island Expressway is one of Singapore’s major east–west expressways, connecting key industrial, residential, and commercial areas across the island.
 E671226 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Pan Island Expressway | Statement: [Tuas, roadAccess, Pan Island Expressway]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pan Island Expressway
Context triple: [Tuas, roadAccess, Pan Island Expressway]
  • A. Bukit Timah Expressway
    The Bukit Timah Expressway (BKE) is a major north–south expressway in Singapore that connects the northern town of Woodlands to central parts of the island and links with other key expressways.
  • B. Seletar Expressway
    The Seletar Expressway (SLE) is a major highway in Singapore that connects the northern region, including Woodlands, to the central and northeastern parts of the island.
  • C. South Klang Valley Expressway
    The South Klang Valley Expressway is a major Malaysian highway that serves as a key orbital route around the southern Klang Valley, linking townships such as Putrajaya, Kajang, and Banting while easing congestion on other primary expressways.
  • D. North South Motorway
    The North–South Motorway is a major freeway in Adelaide, South Australia, forming the central spine of the city’s north–south road corridor.
  • E. North Luzon Expressway
    North Luzon Expressway is a major toll expressway in the Philippines that connects Metro Manila to the provinces of Central and Northern Luzon.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pan Island Expressway
Target entity description: The Pan Island Expressway is one of Singapore’s major east–west expressways, connecting key industrial, residential, and commercial areas across the island.
  • A. Bukit Timah Expressway
    The Bukit Timah Expressway (BKE) is a major north–south expressway in Singapore that connects the northern town of Woodlands to central parts of the island and links with other key expressways.
  • B. Seletar Expressway
    The Seletar Expressway (SLE) is a major highway in Singapore that connects the northern region, including Woodlands, to the central and northeastern parts of the island.
  • C. South Klang Valley Expressway
    The South Klang Valley Expressway is a major Malaysian highway that serves as a key orbital route around the southern Klang Valley, linking townships such as Putrajaya, Kajang, and Banting while easing congestion on other primary expressways.
  • D. North South Motorway
    The North–South Motorway is a major freeway in Adelaide, South Australia, forming the central spine of the city’s north–south road corridor.
  • E. North Luzon Expressway
    North Luzon Expressway is a major toll expressway in the Philippines that connects Metro Manila to the provinces of Central and Northern Luzon.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Pan Island Expressway
Triple: [Tuas, roadAccess, Pan Island Expressway]
Generated description
The Pan Island Expressway is one of Singapore’s major east–west expressways, connecting key industrial, residential, and commercial areas across the island.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69c69f276b108190af2cc790b6554544 elicitation completed
NER batch_69c6f5b8ab5c8190828ee8d144068828 ner completed
NED1 batch_69c84ef2e4588190bedda247ed83bd88 ned_source_triple completed
NED2 batch_69c84fffbaf881908a60d7b8325de023 ned_description completed
NEDg batch_69c84f75ef048190a88cdfc1a068dab4 nedg completed
Created at: March 27, 2026, 3:45 p.m.