Triple
T2440241
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Siemens S700 |
E53255
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
San Diego Metropolitan Transit System
The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
|
E266739
|
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: San Diego Metropolitan Transit System | Statement: [Siemens S700, operator, San Diego Metropolitan Transit System]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Diego Metropolitan Transit System Context triple: [Siemens S700, operator, San Diego Metropolitan Transit System]
-
A.
North County Transit District
North County Transit District is a public transportation agency serving northern San Diego County, California, operating commuter rail, light rail, and bus services.
-
B.
Foothill Transit
Foothill Transit is a public bus transit agency serving communities in the San Gabriel and Pomona Valleys of Los Angeles County, California.
-
C.
Long Beach Transit
Long Beach Transit is a public transportation agency serving the city of Long Beach and surrounding communities in Southern California with bus and related transit services.
-
D.
Lane Transit District
Lane Transit District is the public transportation agency serving Eugene, Springfield, and surrounding communities in Lane County, Oregon, operating bus and bus rapid transit services.
-
E.
Sacramento Regional Transit
Sacramento Regional Transit is the public transportation agency serving the Sacramento, California metropolitan area with light rail and bus services.
- 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: San Diego Metropolitan Transit System Triple: [Siemens S700, operator, San Diego Metropolitan Transit System]
Generated description
The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Diego Metropolitan Transit System Target entity description: The San Diego Metropolitan Transit System is the public transportation agency that operates buses and light rail services throughout the San Diego, California metropolitan area.
-
A.
North County Transit District
North County Transit District is a public transportation agency serving northern San Diego County, California, operating commuter rail, light rail, and bus services.
-
B.
Foothill Transit
Foothill Transit is a public bus transit agency serving communities in the San Gabriel and Pomona Valleys of Los Angeles County, California.
-
C.
Long Beach Transit
Long Beach Transit is a public transportation agency serving the city of Long Beach and surrounding communities in Southern California with bus and related transit services.
-
D.
Lane Transit District
Lane Transit District is the public transportation agency serving Eugene, Springfield, and surrounding communities in Lane County, Oregon, operating bus and bus rapid transit services.
-
E.
Sacramento Regional Transit
Sacramento Regional Transit is the public transportation agency serving the Sacramento, California metropolitan area with light rail and bus services.
- 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_69ab495b6dac8190ac82661aa1452222 |
completed | March 6, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69abc9f7ba208190810f8ea115110375 |
completed | March 7, 2026, 6:47 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69aef0b3f7188190911f2db0ef2200cc |
completed | March 9, 2026, 4:09 p.m. |
| NEDg | Description generation | batch_69aef3752d6c8190b32d99418c0bfdc8 |
completed | March 9, 2026, 4:21 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69aef433a83c8190b20a3a278204badd |
completed | March 9, 2026, 4:24 p.m. |
Created at: March 6, 2026, 9:43 p.m.