Triple

T818546
Position Surface form Disambiguated ID Type / Status
Subject Orange Line (CTA) E17700 entity
Predicate hasStation P35 FINISHED
Object Washington/Wells station
Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
 E160027 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: Washington/Wells station | Statement: [Orange Line (CTA), hasStation, Washington/Wells station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Washington/Wells station
Context triple: [Orange Line (CTA), hasStation, Washington/Wells station]
  • A. Porter station
    Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
  • B. Braintree station
    Braintree station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit and commuter rail station in Braintree, Massachusetts, serving as a major park-and-ride hub on Boston’s South Shore.
  • C. Andover station
    Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
  • D. Brunswick station
    Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
  • E. Winchester Center station
    Winchester Center station is a commuter rail station in Winchester, Massachusetts, serving MBTA's Lowell Line north of Boston.
  • 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: Washington/Wells station
Triple: [Orange Line (CTA), hasStation, Washington/Wells station]
Generated description
Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Washington/Wells station
Target entity description: Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
  • A. Porter station
    Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
  • B. Braintree station
    Braintree station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit and commuter rail station in Braintree, Massachusetts, serving as a major park-and-ride hub on Boston’s South Shore.
  • C. Andover station
    Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
  • D. Brunswick station
    Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
  • E. Winchester Center station
    Winchester Center station is a commuter rail station in Winchester, Massachusetts, serving MBTA's Lowell Line north of Boston.
  • 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_69a4937bcaac8190a322524ac6f45a5a completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4ab63f4a48190a61a14c3c41ed641 completed March 1, 2026, 9:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69acddfa1d48819081538d6505fa062c completed March 8, 2026, 2:24 a.m.
NEDg Description generation batch_69acdeb04378819095c1589f948f49b9 completed March 8, 2026, 2:28 a.m.
NED2 Entity disambiguation (via description) batch_69acdf0f03a081909bbd05fc01a1b281 completed March 8, 2026, 2:29 a.m.
Created at: March 1, 2026, 7:38 p.m.