Triple

T6832136
Position Surface form Disambiguated ID Type / Status
Subject South Boston Transitway E157161 entity
Predicate usedBy P260 FINISHED
Object Silver Line SL2
Silver Line SL2 is a Boston MBTA bus rapid transit route that connects South Station with the Seaport District and Boston Marine Industrial Park via the South Boston Transitway.
 E623984 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: Silver Line SL2 | Statement: [South Boston Transitway, usedBy, Silver Line SL2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Silver Line SL2
Context triple: [South Boston Transitway, usedBy, Silver Line SL2]
  • A. Silver Line SL1
    Silver Line SL1 is a Boston bus rapid transit route connecting Logan International Airport with South Station via the South Boston waterfront.
  • B. Silver Line SL5
    Silver Line SL5 is a bus rapid transit route in Boston that operates as part of the MBTA Silver Line, connecting downtown with neighborhoods along Washington Street.
  • C. Silver Line SL4
    Silver Line SL4 is a bus rapid transit route in Boston that operates as part of the MBTA Silver Line, connecting downtown with neighborhoods along Washington Street.
  • D. EverLine
    EverLine is an automated light rail transit line serving the city of Yongin in the Seoul Capital Area, connecting local districts to the broader Seoul Metropolitan Subway network.
  • E. Línea 6
    Línea 6 is a modern, fully automated metro line in Santiago, Chile, known for its advanced technology, safety features, and connection between key residential and commercial areas of the city.
  • 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: Silver Line SL2
Triple: [South Boston Transitway, usedBy, Silver Line SL2]
Generated description
Silver Line SL2 is a Boston MBTA bus rapid transit route that connects South Station with the Seaport District and Boston Marine Industrial Park via the South Boston Transitway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Silver Line SL2
Target entity description: Silver Line SL2 is a Boston MBTA bus rapid transit route that connects South Station with the Seaport District and Boston Marine Industrial Park via the South Boston Transitway.
  • A. Silver Line SL1
    Silver Line SL1 is a Boston bus rapid transit route connecting Logan International Airport with South Station via the South Boston waterfront.
  • B. Silver Line SL5
    Silver Line SL5 is a bus rapid transit route in Boston that operates as part of the MBTA Silver Line, connecting downtown with neighborhoods along Washington Street.
  • C. Silver Line SL4
    Silver Line SL4 is a bus rapid transit route in Boston that operates as part of the MBTA Silver Line, connecting downtown with neighborhoods along Washington Street.
  • D. EverLine
    EverLine is an automated light rail transit line serving the city of Yongin in the Seoul Capital Area, connecting local districts to the broader Seoul Metropolitan Subway network.
  • E. Línea 6
    Línea 6 is a modern, fully automated metro line in Santiago, Chile, known for its advanced technology, safety features, and connection between key residential and commercial areas of the city.
  • 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_69c6882a5b5c8190917a7db9ed36bad1 completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d62992908190996efab71cbf70f0 completed March 27, 2026, 7:10 p.m.
NED1 Entity disambiguation (via context triple) batch_69c72fab60708190825876e5715c0cc4 completed March 28, 2026, 1:32 a.m.
NEDg Description generation batch_69c7374ba15081909353f52e432a96e0 completed March 28, 2026, 2:04 a.m.
NED2 Entity disambiguation (via description) batch_69c737b1481c8190a0b590c841ea079f completed March 28, 2026, 2:06 a.m.
Created at: March 27, 2026, 2:18 p.m.