Triple
T9201115
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Gold Line |
E220839
|
entity |
| Predicate | openedSegment |
P28341
|
FINISHED |
| Object |
Union Station–Sierra Madre Villa
Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
|
E784260
|
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: Union Station–Sierra Madre Villa | Statement: [Gold Line, openedSegment, Union Station–Sierra Madre Villa]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Station–Sierra Madre Villa Context triple: [Gold Line, openedSegment, Union Station–Sierra Madre Villa]
-
A.
Sepulveda House
Sepulveda House is a historic 19th-century adobe and brick residence and museum located in the El Pueblo de Los Ángeles Historical Monument district of downtown Los Angeles.
-
B.
Fort Mason
Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
-
C.
Lytton Plaza
Lytton Plaza is a small urban plaza and community gathering spot located in the heart of downtown Palo Alto, California.
-
D.
El Cerrito Plaza
El Cerrito Plaza is a major open-air shopping center in El Cerrito, California, featuring a variety of retail stores, services, and dining options.
-
E.
Del Sol station
Del Sol station is a stop on Santiago's Metro system serving Line 5 in the western part of Chile's capital.
- 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: Union Station–Sierra Madre Villa Triple: [Gold Line, openedSegment, Union Station–Sierra Madre Villa]
Generated description
Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Union Station–Sierra Madre Villa Target entity description: Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
-
A.
Sepulveda House
Sepulveda House is a historic 19th-century adobe and brick residence and museum located in the El Pueblo de Los Ángeles Historical Monument district of downtown Los Angeles.
-
B.
Fort Mason
Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
-
C.
Lytton Plaza
Lytton Plaza is a small urban plaza and community gathering spot located in the heart of downtown Palo Alto, California.
-
D.
El Cerrito Plaza
El Cerrito Plaza is a major open-air shopping center in El Cerrito, California, featuring a variety of retail stores, services, and dining options.
-
E.
Del Sol station
Del Sol station is a stop on Santiago's Metro system serving Line 5 in the western part of Chile's capital.
- 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_69ca83e8e9248190862cf3e41693b310 |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69ccd9429b448190a078e9cdfedd4918 |
completed | April 1, 2026, 8:37 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d05c451210819091188151d799e4cb |
completed | April 4, 2026, 12:33 a.m. |
| NEDg | Description generation | batch_69d05dbbe0d08190a15107c17948167f |
completed | April 4, 2026, 12:39 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d05e34ae6881908172770c6097a5e5 |
completed | April 4, 2026, 12:41 a.m. |
Created at: March 30, 2026, 7:25 p.m.