Triple
T21410710
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | City of Pittsburgh Department of Public Works |
E528158
|
entity |
| Predicate | hasDivision |
P35
|
FINISHED |
| Object |
Environmental Services Division
The Environmental Services Division is a unit of Pittsburgh’s Department of Public Works responsible for managing the city’s waste collection, recycling, and related environmental maintenance services.
|
E1482122
|
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: Environmental Services Division | Statement: [City of Pittsburgh Department of Public Works, hasDivision, Environmental Services Division]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Environmental Services Division Context triple: [City of Pittsburgh Department of Public Works, hasDivision, Environmental Services Division]
-
A.
Office of Environmental Services
The Office of Environmental Services is a division within Louisiana’s environmental regulatory agency that oversees permitting, compliance, and related environmental protection programs in the state.
-
B.
Conservation Services Division
The Conservation Services Division is a unit within the Colorado Department of Agriculture that focuses on promoting and supporting natural resource conservation and sustainable agricultural practices across the state.
-
C.
Environmental Management Division
The Environmental Management Division is a branch of Wisconsin’s state natural resources agency responsible for overseeing programs that protect and manage air, water, land, and related environmental resources.
-
D.
Bureau of Environmental Services
The Bureau of Environmental Services is the City of Portland’s public agency responsible for managing wastewater and stormwater infrastructure and protecting local water quality and environmental health.
-
E.
Division of Environmental Stewardship
The Division of Environmental Stewardship is a unit within New York State’s park system responsible for protecting natural resources and promoting sustainable management of state parks and historic sites.
- 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: Environmental Services Division Triple: [City of Pittsburgh Department of Public Works, hasDivision, Environmental Services Division]
Generated description
The Environmental Services Division is a unit of Pittsburgh’s Department of Public Works responsible for managing the city’s waste collection, recycling, and related environmental maintenance services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Environmental Services Division Target entity description: The Environmental Services Division is a unit of Pittsburgh’s Department of Public Works responsible for managing the city’s waste collection, recycling, and related environmental maintenance services.
-
A.
Office of Environmental Services
The Office of Environmental Services is a division within Louisiana’s environmental regulatory agency that oversees permitting, compliance, and related environmental protection programs in the state.
-
B.
Conservation Services Division
The Conservation Services Division is a unit within the Colorado Department of Agriculture that focuses on promoting and supporting natural resource conservation and sustainable agricultural practices across the state.
-
C.
Environmental Management Division
The Environmental Management Division is a branch of Wisconsin’s state natural resources agency responsible for overseeing programs that protect and manage air, water, land, and related environmental resources.
-
D.
Bureau of Environmental Services
The Bureau of Environmental Services is the City of Portland’s public agency responsible for managing wastewater and stormwater infrastructure and protecting local water quality and environmental health.
-
E.
Division of Environmental Stewardship
The Division of Environmental Stewardship is a unit within New York State’s park system responsible for protecting natural resources and promoting sustainable management of state parks and historic sites.
- 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_69e0c454c248819093425d1099101c09 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69e8b1b6595481908cdf915e3585ed08 |
completed | April 22, 2026, 11:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a09bb590c888190bb5129341552cdb3 |
completed | May 17, 2026, 12:58 p.m. |
| NEDg | Description generation | batch_6a09bea578348190a3cc8a652c7fc362 |
completed | May 17, 2026, 1:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a09bf5645348190a2ef7bd49a0237d8 |
completed | May 17, 2026, 1:15 p.m. |
Created at: April 16, 2026, 5:43 p.m.