Triple

T7622550
Position Surface form Disambiguated ID Type / Status
Subject Fitchburg Line stations E172534 entity
Predicate includeStation P726 FINISHED
Object Wachusett
Wachusett is a commuter rail station in Westminster, Massachusetts, serving as the western terminus of the MBTA Fitchburg Line.
E679561 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: Wachusett | Statement: [Fitchburg Line stations, includeStation, Wachusett]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Wachusett
Context triple: [Fitchburg Line stations, includeStation, Wachusett]
  • A. Wamsutta
    Wamsutta was a 17th-century Wampanoag sachem and the elder brother of Metacom (King Philip), whose disputed dealings with English colonists helped set the stage for King Philip’s War.
  • B. Passumpsic River
    The Passumpsic River is a tributary of the Connecticut River in northeastern Vermont, known for flowing through Caledonia and Essex counties and supporting local recreation and ecosystems.
  • C. Shawsheen Brook
    Shawsheen Brook is a small stream in Massachusetts that feeds into the Saugus River as part of the region’s coastal watershed.
  • D. Farmington River
    The Farmington River is a prominent river in north-central Connecticut known for its scenic beauty, recreational opportunities like fishing and paddling, and historic mill and industrial sites along its banks.
  • E. Deerfield River
    The Deerfield River is a scenic New England waterway known for its whitewater recreation, hydroelectric dams, and role as a major tributary of the Connecticut River.
  • 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: Wachusett
Triple: [Fitchburg Line stations, includeStation, Wachusett]
Generated description
Wachusett is a commuter rail station in Westminster, Massachusetts, serving as the western terminus of the MBTA Fitchburg Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Wachusett
Target entity description: Wachusett is a commuter rail station in Westminster, Massachusetts, serving as the western terminus of the MBTA Fitchburg Line.
  • A. Wamsutta
    Wamsutta was a 17th-century Wampanoag sachem and the elder brother of Metacom (King Philip), whose disputed dealings with English colonists helped set the stage for King Philip’s War.
  • B. Passumpsic River
    The Passumpsic River is a tributary of the Connecticut River in northeastern Vermont, known for flowing through Caledonia and Essex counties and supporting local recreation and ecosystems.
  • C. Shawsheen Brook
    Shawsheen Brook is a small stream in Massachusetts that feeds into the Saugus River as part of the region’s coastal watershed.
  • D. Farmington River
    The Farmington River is a prominent river in north-central Connecticut known for its scenic beauty, recreational opportunities like fishing and paddling, and historic mill and industrial sites along its banks.
  • E. Deerfield River
    The Deerfield River is a scenic New England waterway known for its whitewater recreation, hydroelectric dams, and role as a major tributary of the Connecticut River.
  • 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_69c699506b308190826894dab1d9ea86 completed March 27, 2026, 2:50 p.m.
NER Named-entity recognition batch_69c701731a288190b53ffc546a2f47d7 completed March 27, 2026, 10:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69c89aa7b264819096ddeda8e4c5ddb4 completed March 29, 2026, 3:21 a.m.
NEDg Description generation batch_69c89d0b32848190921807e453474ec6 completed March 29, 2026, 3:31 a.m.
NED2 Entity disambiguation (via description) batch_69c89d6b75b881908886ea9505c0b582 completed March 29, 2026, 3:32 a.m.
Created at: March 27, 2026, 3:56 p.m.