Triple
T6455415
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | St. Louis |
E141981
|
entity |
| Predicate | majorRailTerminal |
P726
|
FINISHED |
| Object |
St. Louis Union Station
St. Louis Union Station is a historic former railroad terminal in downtown St. Louis that has been transformed into a mixed-use complex featuring a hotel, attractions, dining, and entertainment.
|
E597545
|
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: St. Louis Union Station | Statement: [St. Louis, majorRailTerminal, St. Louis Union Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: St. Louis Union Station Context triple: [St. Louis, majorRailTerminal, St. Louis Union Station]
-
A.
Kansas City Union Station
Kansas City Union Station is a historic Beaux-Arts train station and cultural landmark in Kansas City, Missouri, now housing museums, exhibits, theaters, and public events.
-
B.
St. Louis Gateway Transportation Center
St. Louis Gateway Transportation Center is a major intermodal transit hub in downtown St. Louis, Missouri, serving Amtrak trains, intercity buses, and local transit services.
-
C.
Railway Exchange Building (St. Louis)
The Railway Exchange Building in St. Louis is a historic early 20th-century commercial skyscraper known for its grand Beaux-Arts design and long association with major department stores.
-
D.
Omaha Union Station
Omaha Union Station is a historic Art Deco former railway station in Omaha, Nebraska, now repurposed as a cultural and museum space.
-
E.
Indianapolis Union Station
Indianapolis Union Station is a historic railway terminal in downtown Indianapolis, Indiana, notable as one of the first union stations in the United States and a key Midwestern passenger rail hub.
- 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: St. Louis Union Station Triple: [St. Louis, majorRailTerminal, St. Louis Union Station]
Generated description
St. Louis Union Station is a historic former railroad terminal in downtown St. Louis that has been transformed into a mixed-use complex featuring a hotel, attractions, dining, and entertainment.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: St. Louis Union Station Target entity description: St. Louis Union Station is a historic former railroad terminal in downtown St. Louis that has been transformed into a mixed-use complex featuring a hotel, attractions, dining, and entertainment.
-
A.
Kansas City Union Station
Kansas City Union Station is a historic Beaux-Arts train station and cultural landmark in Kansas City, Missouri, now housing museums, exhibits, theaters, and public events.
-
B.
St. Louis Gateway Transportation Center
St. Louis Gateway Transportation Center is a major intermodal transit hub in downtown St. Louis, Missouri, serving Amtrak trains, intercity buses, and local transit services.
-
C.
Railway Exchange Building (St. Louis)
The Railway Exchange Building in St. Louis is a historic early 20th-century commercial skyscraper known for its grand Beaux-Arts design and long association with major department stores.
-
D.
Omaha Union Station
Omaha Union Station is a historic Art Deco former railway station in Omaha, Nebraska, now repurposed as a cultural and museum space.
-
E.
Indianapolis Union Station
Indianapolis Union Station is a historic railway terminal in downtown Indianapolis, Indiana, notable as one of the first union stations in the United States and a key Midwestern passenger rail hub.
- 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_69c008d2f91c8190a8178767a35e08fc |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c069d4d588819090e8a56c46c0bfe9 |
completed | March 22, 2026, 10:14 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c65fce95008190b821aafdddbe8296 |
completed | March 27, 2026, 10:45 a.m. |
| NEDg | Description generation | batch_69c660e0c6b48190bba7162153af6d80 |
completed | March 27, 2026, 10:50 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6613a3d1881908a93ffdf3e98ee98 |
completed | March 27, 2026, 10:51 a.m. |
Created at: March 22, 2026, 4:48 p.m.