Triple

T17312658
Position Surface form Disambiguated ID Type / Status
Subject MAX Light Rail E420336 entity
Predicate hasOfficialName P66 FINISHED
Object Metropolitan Area Express
Metropolitan Area Express is the official name of Portland, Oregon’s MAX Light Rail public transit system.
 E1261952 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: Metropolitan Area Express | Statement: [MAX Light Rail, hasOfficialName, Metropolitan Area Express]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Area Express
Context triple: [MAX Light Rail, hasOfficialName, Metropolitan Area Express]
  • A. A-train commuter rail
    The A-train commuter rail is a regional passenger rail line in North Texas that connects Denton to the Dallas–Fort Worth area as part of the Denton County Transportation Authority network.
  • B. Sounder commuter rail
    Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
  • C. Commuter Express
    Commuter Express is a Los Angeles Department of Transportation (LADOT) express bus service that provides limited-stop commuter transportation between outlying neighborhoods and major job centers in the Los Angeles area.
  • D. Metro Liner
    Metro Liner was the original brand name used by Los Angeles County’s transit agency for its bus rapid transit services before they were rebranded under the Metro Busway system.
  • E. AeroTrain
    AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
  • 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: Metropolitan Area Express
Triple: [MAX Light Rail, hasOfficialName, Metropolitan Area Express]
Generated description
Metropolitan Area Express is the official name of Portland, Oregon’s MAX Light Rail public transit system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Area Express
Target entity description: Metropolitan Area Express is the official name of Portland, Oregon’s MAX Light Rail public transit system.
  • A. A-train commuter rail
    The A-train commuter rail is a regional passenger rail line in North Texas that connects Denton to the Dallas–Fort Worth area as part of the Denton County Transportation Authority network.
  • B. Sounder commuter rail
    Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
  • C. Commuter Express
    Commuter Express is a Los Angeles Department of Transportation (LADOT) express bus service that provides limited-stop commuter transportation between outlying neighborhoods and major job centers in the Los Angeles area.
  • D. Metro Liner
    Metro Liner was the original brand name used by Los Angeles County’s transit agency for its bus rapid transit services before they were rebranded under the Metro Busway system.
  • E. AeroTrain
    AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
  • 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_69d889d22b848190a4663d0b8f8f76e7 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e4399a4194819091d34cd3fffc8072 completed April 19, 2026, 2:10 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0180e6e830819097b33d6b99232727 completed May 11, 2026, 7:10 a.m.
NEDg Description generation batch_6a01853590d081908f6523c55e4f610d completed May 11, 2026, 7:28 a.m.
NED2 Entity disambiguation (via description) batch_6a01860e39788190bbf5ca5188352d95 completed May 11, 2026, 7:32 a.m.
Created at: April 10, 2026, 5:43 a.m.