Triple

T4653002
Position Surface form Disambiguated ID Type / Status
Subject Arborway E102339 entity
Predicate near P350 FINISHED
Object Forest Hills MBTA station
Forest Hills MBTA station is a major multimodal transit hub in Boston’s Jamaica Plain neighborhood, serving as a key terminus for subway, commuter rail, and bus routes.
 E457986 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: Forest Hills MBTA station | Statement: [Arborway, near, Forest Hills MBTA station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Forest Hills MBTA station
Context triple: [Arborway, near, Forest Hills MBTA station]
  • A. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • B. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • C. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and neighborhoods.
  • D. Beacon Hill light rail station
    Beacon Hill light rail station is an underground Link light rail stop in Seattle, Washington, serving the Beacon Hill neighborhood with rapid transit connections to downtown and other parts of the city.
  • E. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • 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: Forest Hills MBTA station
Triple: [Arborway, near, Forest Hills MBTA station]
Generated description
Forest Hills MBTA station is a major multimodal transit hub in Boston’s Jamaica Plain neighborhood, serving as a key terminus for subway, commuter rail, and bus routes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Forest Hills MBTA station
Target entity description: Forest Hills MBTA station is a major multimodal transit hub in Boston’s Jamaica Plain neighborhood, serving as a key terminus for subway, commuter rail, and bus routes.
  • A. MBTA Silver Hill station
    MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
  • B. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • C. Brookline Hills station
    Brookline Hills station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in Brookline, Massachusetts, serving local commuters and nearby schools and neighborhoods.
  • D. Beacon Hill light rail station
    Beacon Hill light rail station is an underground Link light rail stop in Seattle, Washington, serving the Beacon Hill neighborhood with rapid transit connections to downtown and other parts of the city.
  • E. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • 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_69bd43d71a308190afea7280841b0de8 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd6314883481908f085a7af497b0d8 completed March 20, 2026, 3:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdfaeb1ee081909ef641953bdf8df3 completed March 21, 2026, 1:56 a.m.
NEDg Description generation batch_69bdfbc12acc8190b8116a6003abb3e3 completed March 21, 2026, 2 a.m.
NED2 Entity disambiguation (via description) batch_69bdfc44536c8190a71e52b0690a7570 completed March 21, 2026, 2:02 a.m.
Created at: March 20, 2026, 1:14 p.m.