Triple
T1479658
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chestnut Hill, Newton |
E30922
|
entity |
| Predicate | near |
P350
|
FINISHED |
| Object |
Chestnut Hill Reservoir
Chestnut Hill Reservoir is a historic man-made lake in the Chestnut Hill area of Boston, Massachusetts, known for its scenic walking paths and role in the city’s former water supply system.
|
E171979
|
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: Chestnut Hill Reservoir | Statement: [Chestnut Hill, Newton, near, Chestnut Hill Reservoir]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chestnut Hill Reservoir Context triple: [Chestnut Hill, Newton, near, Chestnut Hill Reservoir]
-
A.
Malden Reservoir
Malden Reservoir is a man-made water body in Massachusetts that serves as a local water supply and recreational resource within the greater Boston area.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
Jerome Park Reservoir
Jerome Park Reservoir is a major freshwater storage facility in the Bronx that plays a key role in New York City’s Croton water supply system.
-
D.
Boyds Corner Reservoir
Boyds Corner Reservoir is a small New York City water supply reservoir in Putnam County, New York, that forms part of the city’s Croton watershed system.
-
E.
Middle Branch Reservoir
Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
- 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: Chestnut Hill Reservoir Triple: [Chestnut Hill, Newton, near, Chestnut Hill Reservoir]
Generated description
Chestnut Hill Reservoir is a historic man-made lake in the Chestnut Hill area of Boston, Massachusetts, known for its scenic walking paths and role in the city’s former water supply system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chestnut Hill Reservoir Target entity description: Chestnut Hill Reservoir is a historic man-made lake in the Chestnut Hill area of Boston, Massachusetts, known for its scenic walking paths and role in the city’s former water supply system.
-
A.
Malden Reservoir
Malden Reservoir is a man-made water body in Massachusetts that serves as a local water supply and recreational resource within the greater Boston area.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
Jerome Park Reservoir
Jerome Park Reservoir is a major freshwater storage facility in the Bronx that plays a key role in New York City’s Croton water supply system.
-
D.
Boyds Corner Reservoir
Boyds Corner Reservoir is a small New York City water supply reservoir in Putnam County, New York, that forms part of the city’s Croton watershed system.
-
E.
Middle Branch Reservoir
Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
- 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_69a498fe55a88190ab7f9e40ace88e49 |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c674cc9c819088fc9146c7a7a914 |
completed | March 1, 2026, 11:06 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad232d039c8190840719485e214bfc |
completed | March 8, 2026, 7:20 a.m. |
| NEDg | Description generation | batch_69ad2399f8408190872be9c2f04644ca |
completed | March 8, 2026, 7:22 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad247476d08190827501ff5b380646 |
completed | March 8, 2026, 7:25 a.m. |
Created at: March 1, 2026, 8:11 p.m.