Triple

T851012
Position Surface form Disambiguated ID Type / Status
Subject Arlington, Massachusetts E18384 entity
Predicate hasWatercourse P165 FINISHED
Object Alewife Brook
Alewife Brook is a small urban stream in the Boston metropolitan area that flows through Arlington and neighboring communities before joining the Mystic River.
 E124958 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 Brook | Statement: [Arlington, Massachusetts, hasWatercourse, Alewife Brook]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Alewife Brook
Context triple: [Arlington, Massachusetts, hasWatercourse, Alewife Brook]
  • A. Feldspar Brook
    Feldspar Brook is a small mountain stream in the Adirondack High Peaks region of New York that originates near Lake Tear of the Clouds and contributes to the headwaters of the Hudson River system.
  • B. Amato Brook
    Amato Brook is a small tributary stream that feeds into New York’s Croton River within the Croton River watershed system.
  • C. Porter Brook
    Porter Brook is a small urban river running through Sheffield, England, historically important for powering the city’s early industry.
  • D. Wapsinonoc Creek
    Wapsinonoc Creek is a small stream in eastern Iowa that flows through and helps drain the area around the town of West Branch.
  • E. Aberjona River
    The Aberjona River is a small river in eastern Massachusetts that flows through communities such as Winchester and Woburn before joining the Mystic 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: Alewife Brook
Triple: [Arlington, Massachusetts, hasWatercourse, Alewife Brook]
Generated description
Alewife Brook is a small urban stream in the Boston metropolitan area that flows through Arlington and neighboring communities before joining the Mystic River.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Alewife Brook
Target entity description: Alewife Brook is a small urban stream in the Boston metropolitan area that flows through Arlington and neighboring communities before joining the Mystic River.
  • A. Feldspar Brook
    Feldspar Brook is a small mountain stream in the Adirondack High Peaks region of New York that originates near Lake Tear of the Clouds and contributes to the headwaters of the Hudson River system.
  • B. Amato Brook
    Amato Brook is a small tributary stream that feeds into New York’s Croton River within the Croton River watershed system.
  • C. Porter Brook
    Porter Brook is a small urban river running through Sheffield, England, historically important for powering the city’s early industry.
  • D. Wapsinonoc Creek
    Wapsinonoc Creek is a small stream in eastern Iowa that flows through and helps drain the area around the town of West Branch.
  • E. Aberjona River
    The Aberjona River is a small river in eastern Massachusetts that flows through communities such as Winchester and Woburn before joining the Mystic 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_69a4938b04208190b82e1df6b572c548 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4ac22de288190913714d41e5a8e12 completed March 1, 2026, 9:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac427fffe88190b28bd1b660bb90fe completed March 7, 2026, 3:21 p.m.
NEDg Description generation batch_69ac431f9ebc81908bcc9b259b2e47a8 completed March 7, 2026, 3:24 p.m.
NED2 Entity disambiguation (via description) batch_69ac43a2a294819095cf58c39118389f completed March 7, 2026, 3:26 p.m.
Created at: March 1, 2026, 7:38 p.m.