Triple
T328251
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Steven F. Udvar-Hazy Center |
E6567
|
entity |
| Predicate | hasFacility |
P105
|
FINISHED |
| Object |
Donald D. Engen Observation Tower
The Donald D. Engen Observation Tower is a public viewing tower at the Smithsonian’s National Air and Space Museum annex near Dulles Airport, offering panoramic views of the airfield and aircraft operations.
|
E41914
|
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: Donald D. Engen Observation Tower | Statement: [Steven F. Udvar-Hazy Center, hasFacility, Donald D. Engen Observation Tower]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Donald D. Engen Observation Tower Context triple: [Steven F. Udvar-Hazy Center, hasFacility, Donald D. Engen Observation Tower]
-
A.
High Rock Tower
High Rock Tower is a historic stone observation tower and former lighthouse in Lynn, Massachusetts, known for its panoramic coastal views and public park setting.
-
B.
Pilot Butte State Scenic Viewpoint
Pilot Butte State Scenic Viewpoint is a volcanic cinder cone and public recreation area in Bend, Oregon, known for its panoramic views of the city and surrounding Cascade Range.
-
C.
Ernest F. Coe Visitor Center
Ernest F. Coe Visitor Center is the main visitor facility and eastern gateway to Everglades National Park, offering exhibits, information, and services for park visitors.
-
D.
Walter Pyramid
Walter Pyramid is a distinctive blue, pyramid-shaped indoor arena on the campus of California State University, Long Beach, best known as a venue for college basketball and volleyball.
-
E.
Science Hill
Science Hill is a major academic area of Yale University that houses many of the university’s science departments, laboratories, and research facilities.
- 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: Donald D. Engen Observation Tower Triple: [Steven F. Udvar-Hazy Center, hasFacility, Donald D. Engen Observation Tower]
Generated description
The Donald D. Engen Observation Tower is a public viewing tower at the Smithsonian’s National Air and Space Museum annex near Dulles Airport, offering panoramic views of the airfield and aircraft operations.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Donald D. Engen Observation Tower Target entity description: The Donald D. Engen Observation Tower is a public viewing tower at the Smithsonian’s National Air and Space Museum annex near Dulles Airport, offering panoramic views of the airfield and aircraft operations.
-
A.
High Rock Tower
High Rock Tower is a historic stone observation tower and former lighthouse in Lynn, Massachusetts, known for its panoramic coastal views and public park setting.
-
B.
Pilot Butte State Scenic Viewpoint
Pilot Butte State Scenic Viewpoint is a volcanic cinder cone and public recreation area in Bend, Oregon, known for its panoramic views of the city and surrounding Cascade Range.
-
C.
Ernest F. Coe Visitor Center
Ernest F. Coe Visitor Center is the main visitor facility and eastern gateway to Everglades National Park, offering exhibits, information, and services for park visitors.
-
D.
Walter Pyramid
Walter Pyramid is a distinctive blue, pyramid-shaped indoor arena on the campus of California State University, Long Beach, best known as a venue for college basketball and volleyball.
-
E.
Science Hill
Science Hill is a major academic area of Yale University that houses many of the university’s science departments, laboratories, and research facilities.
- 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_69a2e7933d6c8190bb2592ad13286ef2 |
completed | Feb. 28, 2026, 1:03 p.m. |
| NER | Named-entity recognition | batch_69a2ea98fa2c8190a5b44f4a26543a17 |
completed | Feb. 28, 2026, 1:16 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a3cfef5f4c8190a9c0e14a5a501237 |
completed | March 1, 2026, 5:34 a.m. |
| NEDg | Description generation | batch_69a3d068ea8c81908851444ca70a64b4 |
completed | March 1, 2026, 5:36 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a3d0eb96748190aa8c47736820387c |
completed | March 1, 2026, 5:38 a.m. |
Created at: Feb. 28, 2026, 1:08 p.m.