Triple
T1832937
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southeast Washington, D.C. |
E40998
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object |
Frederick Douglass National Historic Site vicinity (on hill above Anacostia)
Frederick Douglass National Historic Site vicinity (on hill above Anacostia) is the area surrounding the preserved home and grounds of abolitionist Frederick Douglass, situated on a prominent hill overlooking the Anacostia neighborhood in Southeast Washington, D.C.
|
E203961
|
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: Frederick Douglass National Historic Site vicinity (on hill above Anacostia) | Statement: [Southeast Washington, D.C., contains, Frederick Douglass National Historic Site vicinity (on hill above Anacostia)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Frederick Douglass National Historic Site vicinity (on hill above Anacostia) Context triple: [Southeast Washington, D.C., contains, Frederick Douglass National Historic Site vicinity (on hill above Anacostia)]
-
A.
Frederick Douglass Park on the Tuckahoe
Frederick Douglass Park on the Tuckahoe is a public park in Talbot County, Maryland, dedicated to honoring the legacy of abolitionist Frederick Douglass along the Tuckahoe River near his birthplace.
-
B.
U Street African American Civil War Memorial (vicinity)
U Street African American Civil War Memorial (vicinity) is an area in Washington, D.C.’s historic U Street corridor surrounding the African American Civil War Memorial, which honors Black soldiers and sailors who served in the Civil War.
-
C.
Banneker-Douglass Museum
The Banneker-Douglass Museum is Maryland’s official state museum of African American heritage, highlighting Black history and culture through exhibits, collections, and educational programs.
-
D.
Anacostia Park
Anacostia Park is a large urban waterfront park in Washington, D.C., offering recreational facilities, trails, and green space along the Anacostia River.
-
E.
Pennsylvania Avenue National Historic Site
Pennsylvania Avenue National Historic Site is a protected historic corridor in Washington, D.C., encompassing landmark government buildings and monuments along the ceremonial route between the U.S. Capitol and the White House.
- 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: Frederick Douglass National Historic Site vicinity (on hill above Anacostia) Triple: [Southeast Washington, D.C., contains, Frederick Douglass National Historic Site vicinity (on hill above Anacostia)]
Generated description
Frederick Douglass National Historic Site vicinity (on hill above Anacostia) is the area surrounding the preserved home and grounds of abolitionist Frederick Douglass, situated on a prominent hill overlooking the Anacostia neighborhood in Southeast Washington, D.C.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Frederick Douglass National Historic Site vicinity (on hill above Anacostia) Target entity description: Frederick Douglass National Historic Site vicinity (on hill above Anacostia) is the area surrounding the preserved home and grounds of abolitionist Frederick Douglass, situated on a prominent hill overlooking the Anacostia neighborhood in Southeast Washington, D.C.
-
A.
Frederick Douglass Park on the Tuckahoe
Frederick Douglass Park on the Tuckahoe is a public park in Talbot County, Maryland, dedicated to honoring the legacy of abolitionist Frederick Douglass along the Tuckahoe River near his birthplace.
-
B.
U Street African American Civil War Memorial (vicinity)
U Street African American Civil War Memorial (vicinity) is an area in Washington, D.C.’s historic U Street corridor surrounding the African American Civil War Memorial, which honors Black soldiers and sailors who served in the Civil War.
-
C.
Banneker-Douglass Museum
The Banneker-Douglass Museum is Maryland’s official state museum of African American heritage, highlighting Black history and culture through exhibits, collections, and educational programs.
-
D.
Anacostia Park
Anacostia Park is a large urban waterfront park in Washington, D.C., offering recreational facilities, trails, and green space along the Anacostia River.
-
E.
Pennsylvania Avenue National Historic Site
Pennsylvania Avenue National Historic Site is a protected historic corridor in Washington, D.C., encompassing landmark government buildings and monuments along the ceremonial route between the U.S. Capitol and the White House.
- 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_69a88647f9388190909bc36e795bdaec |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69abb024287c8190b68aa070e556a381 |
completed | March 7, 2026, 4:57 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69adbf711c148190ba12d9bc81892095 |
completed | March 8, 2026, 6:26 p.m. |
| NEDg | Description generation | batch_69adc080abb88190883c35943dc7cb10 |
completed | March 8, 2026, 6:31 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69adc13330888190a2b99c6fcbb97d49 |
completed | March 8, 2026, 6:34 p.m. |
Created at: March 4, 2026, 7:33 p.m.