Triple

T38433
Position Surface form Disambiguated ID Type / Status
Subject MBTA Red Line E761 entity
Predicate terminus P388 FINISHED
Object Alewife
Alewife is a major subway station and transit hub in North Cambridge, Massachusetts, serving as the northern endpoint of Boston’s MBTA Red Line and a large park-and-ride facility.
E3325 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: Alewife | Statement: [MBTA Red Line, terminus, Alewife]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Alewife
Context triple: [MBTA Red Line, terminus, Alewife]
  • A. Beaver
    Beaver was one of the British ships in Boston Harbor whose tea cargo was destroyed during the Boston Tea Party protest in 1773.
  • B. Beavers
    The Beavers are the athletic teams representing Oregon State University in NCAA Division I sports.
  • C. ichthys
    Ichthys is an early Christian symbol depicting a simple fish outline, historically used by believers as a secret sign of their faith.
  • D. Charles River
    The Charles River is a prominent river in eastern Massachusetts that flows between Boston and Cambridge and is known for its scenic banks, recreational activities, and role in the region’s history and culture.
  • E. Lick
    Lick is the nickname of Joseph Carl Robnett Licklider, a pioneering American computer scientist whose ideas helped lay the foundations for interactive computing and the internet.
  • 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: Alewife
Triple: [MBTA Red Line, terminus, Alewife]
Generated description
Alewife is a major subway station and transit hub in North Cambridge, Massachusetts, serving as the northern endpoint of Boston’s MBTA Red Line and a large park-and-ride facility.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Alewife
Target entity description: Alewife is a major subway station and transit hub in North Cambridge, Massachusetts, serving as the northern endpoint of Boston’s MBTA Red Line and a large park-and-ride facility.
  • A. Beaver
    Beaver was one of the British ships in Boston Harbor whose tea cargo was destroyed during the Boston Tea Party protest in 1773.
  • B. Beavers
    The Beavers are the athletic teams representing Oregon State University in NCAA Division I sports.
  • C. ichthys
    Ichthys is an early Christian symbol depicting a simple fish outline, historically used by believers as a secret sign of their faith.
  • D. Charles River
    The Charles River is a prominent river in eastern Massachusetts that flows between Boston and Cambridge and is known for its scenic banks, recreational activities, and role in the region’s history and culture.
  • E. Lick
    Lick is the nickname of Joseph Carl Robnett Licklider, a pioneering American computer scientist whose ideas helped lay the foundations for interactive computing and the internet.
  • 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_69a247a8f6c08190bac804906d62ed5a completed Feb. 28, 2026, 1:40 a.m.
NER Named-entity recognition batch_69a24acd14b48190b80d4329621583df completed Feb. 28, 2026, 1:54 a.m.
NED1 Entity disambiguation (via context triple) batch_69a24e6222408190bc317b90aea16849 completed Feb. 28, 2026, 2:09 a.m.
NEDg Description generation batch_69a250f6c0308190affd58f1bfa0c261 completed Feb. 28, 2026, 2:20 a.m.
NED2 Entity disambiguation (via description) batch_69a251b471688190b067c5db8f03ac47 completed Feb. 28, 2026, 2:23 a.m.
Created at: Feb. 28, 2026, 1:46 a.m.