Triple
T1595995
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Echo Lake, Hopkinton, Massachusetts |
E34283
|
entity |
| Predicate | isHeadwatersOf |
P947
|
FINISHED |
| Object | Charles River |
E1807
|
NE FINISHED |
How this triple was built (3 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: Charles River | Statement: [Echo Lake, Hopkinton, Massachusetts, isHeadwatersOf, Charles River]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Charles River Context triple: [Echo Lake, Hopkinton, Massachusetts, isHeadwatersOf, Charles River]
-
A.
Charles River
chosen
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.
-
B.
Avon River
The Avon River is a scenic waterway in Stratford, Ontario, that runs through the city’s parklands and provides a picturesque setting for the renowned Stratford Festival.
-
C.
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.
-
D.
West River
West River is a tidal tributary of the Chesapeake Bay in Maryland known for its boating, fishing, and waterfront communities.
-
E.
Merrimack River
The Merrimack River is a major New England waterway that flows through New Hampshire and northeastern Massachusetts, historically important for powering textile mills and shaping the industrial development of the region.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: isHeadwatersOf Context triple: [Echo Lake, Hopkinton, Massachusetts, isHeadwatersOf, Charles River]
-
A.
majorRiverSource
chosen
Indicates that one entity is the primary originating source or headwaters location of a major river.
-
B.
mouthOfTheWatercourse
Indicates the location where a watercourse ends and flows into a larger body of water.
-
C.
hasRiver
Indicates that a location or area contains, is traversed by, or is directly associated with a river.
-
D.
distributaryOf
Indicates that one watercourse branches off from a main river or stream and carries its water away, rather than feeding into it.
-
E.
tributary
Indicates that one watercourse flows into and feeds another, contributing its water to a larger stream, river, or lake.
- F. None of above.
Provenance (4 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_69a885fdcb9c819081ce6f0b8cd477dd |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69a916d413f08190a4e137e5ed262e25 |
completed | March 5, 2026, 5:38 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b589a2d510819089503b77f4d21fc8 |
completed | March 14, 2026, 4:15 p.m. |
| PD | Predicate disambiguation | batch_69a907bfb39c8190a31e0be14d3d52e6 |
completed | March 5, 2026, 4:34 a.m. |
Created at: March 4, 2026, 7:27 p.m.