Triple
T8599482
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | D Line (Los Angeles Metro) |
E203637
|
entity |
| Predicate | downtownTrunkSegment |
P17428
|
FINISHED |
| Object |
Union Station–Wilshire/Vermont
Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
|
E748399
|
NE FINISHED |
How this triple was built (5 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–Wilshire/Vermont | Statement: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Station–Wilshire/Vermont Context triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
-
A.
Wilshire/Vermont station
Wilshire/Vermont station is a major underground Los Angeles Metro Rail hub in Koreatown where multiple lines intersect, serving as a key transfer point for commuters.
-
B.
Union Station (Los Angeles)
Union Station (Los Angeles) is the city’s main intermodal transportation terminal, serving as a central hub for regional rail, subway, light rail, and bus services.
-
C.
Wilshire/Western station
Wilshire/Western station is an underground rapid transit station in Los Angeles serving the Metro D Line at the intersection of Wilshire Boulevard and Western Avenue in Koreatown.
-
D.
Santa Monica Downtown station
Santa Monica Downtown station is a light rail transit stop in downtown Santa Monica that serves as the western terminus of Los Angeles Metro Rail’s E Line near the Pacific Ocean.
-
E.
Wilshire/Normandie station
Wilshire/Normandie station is an underground Los Angeles Metro Rail station on the D Line serving the Koreatown and Wilshire Center neighborhoods.
- 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–Wilshire/Vermont Triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
Generated description
Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Union Station–Wilshire/Vermont Target entity description: Union Station–Wilshire/Vermont is the central shared trunk segment of Los Angeles Metro’s D Line, running between Union Station downtown and the Wilshire/Vermont station.
-
A.
Wilshire/Vermont station
Wilshire/Vermont station is a major underground Los Angeles Metro Rail hub in Koreatown where multiple lines intersect, serving as a key transfer point for commuters.
-
B.
Union Station (Los Angeles)
Union Station (Los Angeles) is the city’s main intermodal transportation terminal, serving as a central hub for regional rail, subway, light rail, and bus services.
-
C.
Wilshire/Western station
Wilshire/Western station is an underground rapid transit station in Los Angeles serving the Metro D Line at the intersection of Wilshire Boulevard and Western Avenue in Koreatown.
-
D.
Santa Monica Downtown station
Santa Monica Downtown station is a light rail transit stop in downtown Santa Monica that serves as the western terminus of Los Angeles Metro Rail’s E Line near the Pacific Ocean.
-
E.
Wilshire/Normandie station
Wilshire/Normandie station is an underground Los Angeles Metro Rail station on the D Line serving the Koreatown and Wilshire Center neighborhoods.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: downtownTrunkSegment Context triple: [D Line (Los Angeles Metro), downtownTrunkSegment, Union Station–Wilshire/Vermont]
-
A.
isDowntownEndpointOf
Indicates that a location serves as the downtown terminus or endpoint of a route, line, or path.
-
B.
connectsDowntownTo
Indicates a relationship where one location, route, or service provides a direct connection or access to a downtown area.
-
C.
manhattanTrunkLine
chosen
Indicates a primary or central route, pathway, or connection running through a dense or core area, analogous to a main trunk line in Manhattan.
-
D.
hasDowntown
Indicates that a place or city possesses a central downtown area.
-
E.
hasDowntownCharacteristic
Indicates that something possesses a feature, quality, or attribute typically associated with a downtown area.
- F. None of above.
Provenance (6 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_69ca832b56948190ba751cec255308f1 |
completed | March 30, 2026, 2:05 p.m. |
| NER | Named-entity recognition | batch_69cc46d7c184819083236c75f9ccc9cf |
completed | March 31, 2026, 10:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cecc839cdc819093c3cd0e44f173a2 |
completed | April 2, 2026, 8:07 p.m. |
| NEDg | Description generation | batch_69cece14193081909e7b36f5b5b7da40 |
completed | April 2, 2026, 8:14 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cecee1db28819095f704b96b8c6d2a |
completed | April 2, 2026, 8:17 p.m. |
| PD | Predicate disambiguation | batch_69cc454eb2908190acf0e4336bc67e7b |
completed | March 31, 2026, 10:06 p.m. |
Created at: March 30, 2026, 6:24 p.m.