Triple
T122605
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | YouTube |
E2481
|
entity |
| Predicate | headquartersLocation |
P62
|
FINISHED |
| Object |
San Bruno, California, United States
San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
|
E79164
|
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 Bruno, California, United States | Statement: [YouTube, headquartersLocation, San Bruno, California, United States]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Bruno, California, United States Context triple: [YouTube, headquartersLocation, San Bruno, California, United States]
-
A.
Menlo Park, California
Menlo Park, California is a city in Silicon Valley known as a hub for technology and venture capital, home to major research institutions and tech companies.
-
B.
Palo Alto, California
Palo Alto, California is a major Silicon Valley city known for its role as a global technology and innovation hub and as the home of Stanford University.
-
C.
Los Altos Hills, California, United States
Los Altos Hills, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates, open space, and association with prominent technology and business figures.
-
D.
Redwood City, California
Redwood City, California is a city on the San Francisco Peninsula in Silicon Valley, known for its historic downtown and role as the county seat of San Mateo County.
-
E.
South San Francisco
South San Francisco is a city in northern San Mateo County, California, known for its industrial roots, biotech industry presence, and location just south of San Francisco.
- 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 Bruno, California, United States Triple: [YouTube, headquartersLocation, San Bruno, California, United States]
Generated description
San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Bruno, California, United States Target entity description: San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
-
A.
Menlo Park, California
Menlo Park, California is a city in Silicon Valley known as a hub for technology and venture capital, home to major research institutions and tech companies.
-
B.
Palo Alto, California
Palo Alto, California is a major Silicon Valley city known for its role as a global technology and innovation hub and as the home of Stanford University.
-
C.
Los Altos Hills, California, United States
Los Altos Hills, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates, open space, and association with prominent technology and business figures.
-
D.
Redwood City, California
Redwood City, California is a city on the San Francisco Peninsula in Silicon Valley, known for its historic downtown and role as the county seat of San Mateo County.
-
E.
South San Francisco
South San Francisco is a city in northern San Mateo County, California, known for its industrial roots, biotech industry presence, and location just south of San Francisco.
- 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_69a2506c5428819085c28a8884790e29 |
completed | Feb. 28, 2026, 2:18 a.m. |
| NER | Named-entity recognition | batch_69a2573b4e7481909ee09d2899f8a74b |
completed | Feb. 28, 2026, 2:47 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a56c475ce88190bf16e5ee76f1d3b5 |
completed | March 2, 2026, 10:53 a.m. |
| NEDg | Description generation | batch_69a56cdb8bd08190ac98f36a134d78d5 |
completed | March 2, 2026, 10:56 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a56d8713a88190ba3ad6585e64db23 |
completed | March 2, 2026, 10:59 a.m. |
Created at: Feb. 28, 2026, 2:24 a.m.