Triple

T18866608
Position Surface form Disambiguated ID Type / Status
Subject Memphis Area Transit Authority E461454 entity
Predicate operates P24 FINISHED
Object MATA Trolley
MATA Trolley is a heritage streetcar system in Memphis, Tennessee, providing public transit service with vintage-style trolleys along key downtown corridors.
 E1347141 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: MATA Trolley | Statement: [Memphis Area Transit Authority, operates, MATA Trolley]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: MATA Trolley
Context triple: [Memphis Area Transit Authority, operates, MATA Trolley]
  • A. M-Line Trolley
    M-Line Trolley is a heritage streetcar system operating in Dallas, Texas, providing free public transportation along the McKinney Avenue and Uptown areas.
  • B. MTS Trolley
    MTS Trolley is a light rail public transit system serving the San Diego metropolitan area in California.
  • C. I-Ride Trolley
    The I-Ride Trolley is a tourist-oriented trolley bus service that provides convenient transportation along Orlando’s International Drive resort and attractions corridor.
  • D. Red Car Trolley
    Red Car Trolley is a vintage-style streetcar attraction at Disney California Adventure Park that transports guests along Buena Vista Street and Hollywood Land, evoking Los Angeles transit of the 1920s–30s.
  • E. Metrocars
    Metrocars are the electric multiple unit trains specifically designed and used for passenger services on the Tyne and Wear Metro system in North East England.
  • 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: MATA Trolley
Triple: [Memphis Area Transit Authority, operates, MATA Trolley]
Generated description
MATA Trolley is a heritage streetcar system in Memphis, Tennessee, providing public transit service with vintage-style trolleys along key downtown corridors.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: MATA Trolley
Target entity description: MATA Trolley is a heritage streetcar system in Memphis, Tennessee, providing public transit service with vintage-style trolleys along key downtown corridors.
  • A. M-Line Trolley
    M-Line Trolley is a heritage streetcar system operating in Dallas, Texas, providing free public transportation along the McKinney Avenue and Uptown areas.
  • B. MTS Trolley
    MTS Trolley is a light rail public transit system serving the San Diego metropolitan area in California.
  • C. I-Ride Trolley
    The I-Ride Trolley is a tourist-oriented trolley bus service that provides convenient transportation along Orlando’s International Drive resort and attractions corridor.
  • D. Red Car Trolley
    Red Car Trolley is a vintage-style streetcar attraction at Disney California Adventure Park that transports guests along Buena Vista Street and Hollywood Land, evoking Los Angeles transit of the 1920s–30s.
  • E. Metrocars
    Metrocars are the electric multiple unit trains specifically designed and used for passenger services on the Tyne and Wear Metro system in North East England.
  • 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_69d8dcfb7b9c8190854e7b171b98ea2e completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5c2a617548190be6044bf2c3de6d0 completed April 20, 2026, 6:07 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0575baf168819088723fa9e61008f4 completed May 14, 2026, 7:11 a.m.
NEDg Description generation batch_6a05770a92988190b3bda17b119cf8de completed May 14, 2026, 7:17 a.m.
NED2 Entity disambiguation (via description) batch_6a0577a07ecc8190a0b540e34b72d62f completed May 14, 2026, 7:20 a.m.
Created at: April 10, 2026, 11:57 a.m.