Triple
T17152013
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Santa Fe Depot (San Diego) |
E416243
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object |
Green Line (San Diego Trolley)
The Green Line is a light rail service of the San Diego Trolley system that connects key inland communities with downtown San Diego and major transit hubs.
|
E103770
|
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: Green Line (San Diego Trolley) | Statement: [Santa Fe Depot (San Diego), serves, Green Line (San Diego Trolley)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Green Line (San Diego Trolley) Context triple: [Santa Fe Depot (San Diego), serves, Green Line (San Diego Trolley)]
-
A.
San Diego Trolley
The San Diego Trolley is a light rail transit system serving the San Diego metropolitan area, known for its multiple color-coded lines connecting downtown with surrounding communities and key regional destinations.
-
B.
Green Line (Sacramento RT)
The Green Line (Sacramento RT) is a light rail service in Sacramento, California, operating as part of the Sacramento Regional Transit District’s rail network.
-
C.
G Line (Los Angeles Metro)
The G Line (Los Angeles Metro) is a bus rapid transit route in Los Angeles’ San Fernando Valley that runs primarily along dedicated busways, providing high-frequency east–west service.
-
D.
B Line (Los Angeles Metro)
The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
-
E.
Los Angeles Metro Green Line
The Los Angeles Metro Green Line is an east–west light rail line in Los Angeles County that runs primarily along the median of the I-105 freeway, connecting Norwalk to Redondo Beach and serving as part of the Los Angeles Metro Rail system.
- 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: Green Line (San Diego Trolley) Triple: [Santa Fe Depot (San Diego), serves, Green Line (San Diego Trolley)]
Generated description
The Green Line is a light rail service of the San Diego Trolley system that connects key inland communities with downtown San Diego and major transit hubs.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Green Line (San Diego Trolley) Target entity description: The Green Line is a light rail service of the San Diego Trolley system that connects key inland communities with downtown San Diego and major transit hubs.
-
A.
San Diego Trolley
chosen
The San Diego Trolley is a light rail transit system serving the San Diego metropolitan area, known for its multiple color-coded lines connecting downtown with surrounding communities and key regional destinations.
-
B.
Green Line (Sacramento RT)
The Green Line (Sacramento RT) is a light rail service in Sacramento, California, operating as part of the Sacramento Regional Transit District’s rail network.
-
C.
G Line (Los Angeles Metro)
The G Line (Los Angeles Metro) is a bus rapid transit route in Los Angeles’ San Fernando Valley that runs primarily along dedicated busways, providing high-frequency east–west service.
-
D.
B Line (Los Angeles Metro)
The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
-
E.
Los Angeles Metro Green Line
The Los Angeles Metro Green Line is an east–west light rail line in Los Angeles County that runs primarily along the median of the I-105 freeway, connecting Norwalk to Redondo Beach and serving as part of the Los Angeles Metro Rail system.
- F. None of above.
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_69d886d279c081909f8ff1f743ddeb69 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e3f40861e08190bad1a3ec87691132 |
completed | April 18, 2026, 9:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0148337a348190b8739eb3f553f1d9 |
completed | May 11, 2026, 3:08 a.m. |
| NEDg | Description generation | batch_6a014974b85081908ebe6ee8756f4465 |
completed | May 11, 2026, 3:13 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a014a20bb2c8190bbae3009783efc00 |
completed | May 11, 2026, 3:16 a.m. |
Created at: April 10, 2026, 5:36 a.m.