Triple

T678
Position Surface form Disambiguated ID Type / Status
Subject Everett, Massachusetts E13 entity
Predicate crossedByRiver P225 FINISHED
Object Mystic River
Mystic River is a tidal estuary in the Greater Boston area of Massachusetts, historically significant for shipbuilding and industrial activity along its banks.
E329 NE FINISHED

How this triple was built (5 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: Mystic River | Statement: [Everett, Massachusetts, crossedByRiver, Mystic River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mystic River
Context triple: [Everett, Massachusetts, crossedByRiver, Mystic River]
  • A. Mens et Manus
    Mens et Manus is the Latin motto of the Massachusetts Institute of Technology, expressing the union of mind and hand in the pursuit of knowledge and practical application.
  • B. Project Xanadu
    Project Xanadu is an early, visionary hypertext project conceived by Ted Nelson that aimed to create a universal, non-destructive, and bidirectionally linked document publishing system.
  • C. Veritas
    Veritas is the Latin word for "truth" and is famously used as the motto of Harvard University.
  • D. Douglas
    Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
  • E. New York City
    New York City is the largest city in the United States, a global center of finance, culture, media, and technology.
  • 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: Mystic River
Triple: [Everett, Massachusetts, crossedByRiver, Mystic River]
Generated description
Mystic River is a tidal estuary in the Greater Boston area of Massachusetts, historically significant for shipbuilding and industrial activity along its banks.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mystic River
Target entity description: Mystic River is a tidal estuary in the Greater Boston area of Massachusetts, historically significant for shipbuilding and industrial activity along its banks.
  • A. Mens et Manus
    Mens et Manus is the Latin motto of the Massachusetts Institute of Technology, expressing the union of mind and hand in the pursuit of knowledge and practical application.
  • B. All Hail to Massachusetts
    "All Hail to Massachusetts" is the official state song that celebrates the history, pride, and heritage of the Commonwealth of Massachusetts.
  • C. The Quaker
    The Quaker is the traditional, colonial-era–styled mascot representing the University of Pennsylvania and its athletic teams.
  • D. The Town of Homes
    The Town of Homes is a residentially focused nickname for Belmont, Massachusetts, reflecting its suburban character and emphasis on neighborhood living.
  • E. Salem witch trials
    The Salem witch trials were a series of infamous 1692–1693 prosecutions in colonial New England where mass hysteria and superstition led to the execution and imprisonment of people accused of witchcraft.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: crossedByRiver
Context triple: [Everett, Massachusetts, crossedByRiver, Mystic River]
  • A. placeOfDeath
    Indicates the location where an entity (typically a person or animal) died.
  • B. wasSupersededBy
    Indicates that one entity has been replaced or made obsolete by another entity that takes over its role or function.
  • C. dissolved
    Indicates that one substance has been mixed into another so thoroughly that it forms a uniform solution and is no longer distinguishable as a separate phase.
  • D. locatedIn
    Indicates that one entity exists or is situated within the spatial, administrative, or conceptual boundaries of another entity.
  • E. influenced
    Indicates that one entity has affected, shaped, or altered another entity’s state, behavior, or characteristics.
  • F. None of above. chosen

Provenance (7 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_69a22a285828819081a58308fb963df1 completed Feb. 27, 2026, 11:35 p.m.
NER Named-entity recognition batch_69a23211f05c8190b8deb03a8540d84d completed Feb. 28, 2026, 12:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69a238e0dd0c8190999b824f8f32b9d0 completed Feb. 28, 2026, 12:37 a.m.
NEDg Description generation batch_69a23cb1d34481909d877c8db2d0a500 completed Feb. 28, 2026, 12:54 a.m.
NED2 Entity disambiguation (via description) batch_69a23d0072008190b96d3324aeb5e46d completed Feb. 28, 2026, 12:55 a.m.
PD Predicate disambiguation batch_69a230c2c48481908beb1db3cc9768aa completed Feb. 28, 2026, 12:03 a.m.
PDg Predicate description generation batch_69a23211181c81909c2db8796d2aded4 completed Feb. 28, 2026, 12:08 a.m.
Created at: Feb. 27, 2026, 11:36 p.m.