Triple
T679356
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago River |
E13146
|
entity |
| Predicate | managedBy |
P86
|
FINISHED |
| Object |
Metropolitan Water Reclamation District of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
|
E83512
|
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: Metropolitan Water Reclamation District of Greater Chicago | Statement: [Chicago River, managedBy, Metropolitan Water Reclamation District of Greater Chicago]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Water Reclamation District of Greater Chicago Context triple: [Chicago River, managedBy, Metropolitan Water Reclamation District of Greater Chicago]
-
A.
Chicago waterworks
Chicago waterworks was a 19th-century municipal water supply facility in Chicago that became historically notable after being largely destroyed in the Great Chicago Fire of 1871.
-
B.
Chicago Metropolitan Agency for Planning
The Chicago Metropolitan Agency for Planning is the regional planning organization responsible for long-range land use, transportation, and economic development planning in the greater Chicago area.
-
C.
Chicago Department of Streets and Sanitation
The Chicago Department of Streets and Sanitation is the city agency responsible for services such as garbage collection, street cleaning, snow removal, and rodent control in Chicago.
-
D.
Metropolitan Pier and Exposition Authority
The Metropolitan Pier and Exposition Authority is a municipal corporation in Chicago that owns and operates major lakefront convention and tourism facilities, including Navy Pier and McCormick Place.
-
E.
Urbana Park District
Urbana Park District is the local governmental agency responsible for managing and maintaining public parks, recreational facilities, and community programs in Urbana, Illinois.
- 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: Metropolitan Water Reclamation District of Greater Chicago Triple: [Chicago River, managedBy, Metropolitan Water Reclamation District of Greater Chicago]
Generated description
The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Water Reclamation District of Greater Chicago Target entity description: The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
-
A.
Chicago waterworks
Chicago waterworks was a 19th-century municipal water supply facility in Chicago that became historically notable after being largely destroyed in the Great Chicago Fire of 1871.
-
B.
Chicago Metropolitan Agency for Planning
The Chicago Metropolitan Agency for Planning is the regional planning organization responsible for long-range land use, transportation, and economic development planning in the greater Chicago area.
-
C.
Chicago Department of Streets and Sanitation
The Chicago Department of Streets and Sanitation is the city agency responsible for services such as garbage collection, street cleaning, snow removal, and rodent control in Chicago.
-
D.
Metropolitan Pier and Exposition Authority
The Metropolitan Pier and Exposition Authority is a municipal corporation in Chicago that owns and operates major lakefront convention and tourism facilities, including Navy Pier and McCormick Place.
-
E.
Urbana Park District
Urbana Park District is the local governmental agency responsible for managing and maintaining public parks, recreational facilities, and community programs in Urbana, Illinois.
- 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_69a4933d3bf88190972041cd8cf143b9 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a4a04f4efc819082767a7517fa760a |
completed | March 1, 2026, 8:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a5c3a38b188190802394a35c83b10b |
completed | March 2, 2026, 5:06 p.m. |
| NEDg | Description generation | batch_69a5c4482584819083b6b84ae8bf9b26 |
completed | March 2, 2026, 5:09 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a5cd4023288190b35ecf295eb58dc1 |
completed | March 2, 2026, 5:47 p.m. |
Created at: March 1, 2026, 7:36 p.m.