Triple
T12761405
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dumbarton Bridge (State Route 84) |
E305002
|
entity |
| Predicate | isLowestCrossingOf |
P106764
|
FINISHED |
| Object | San Francisco Bay |
E1412
|
NE FINISHED |
How this triple was built (3 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 Francisco Bay | Statement: [Dumbarton Bridge (State Route 84), isLowestCrossingOf, San Francisco Bay]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Francisco Bay Context triple: [Dumbarton Bridge (State Route 84), isLowestCrossingOf, San Francisco Bay]
-
A.
San Francisco Bay
chosen
San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
-
B.
San Francisco Estuary
The San Francisco Estuary is a vast, biologically rich tidal estuary system in California where the Sacramento–San Joaquin River Delta meets San Francisco Bay and the Pacific Ocean.
-
C.
Humboldt Bay
Humboldt Bay is a large natural harbor and coastal lagoon on the Northern California coast, known for its rich marine ecosystems, commercial port, and surrounding wetlands.
-
D.
San Francisco Bay Costanoan
The San Francisco Bay Costanoan are an Indigenous Ohlone-speaking people native to the San Francisco Bay Area of California, traditionally living in village communities along its shores and inland valleys.
-
E.
Suisun Bay
Suisun Bay is a shallow tidal estuary in Northern California that forms part of the greater San Francisco Bay system and serves as a key confluence for the Sacramento and San Joaquin rivers.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: isLowestCrossingOf Context triple: [Dumbarton Bridge (State Route 84), isLowestCrossingOf, San Francisco Bay]
-
A.
hasCrossingPoint
Indicates that two or more entities intersect or share at least one common point in space or along their paths.
-
B.
hasLowestTerminusAmong
Indicates that one entity’s terminus (end point) is lower in position or elevation than the termini of all other compared entities.
-
C.
hasCrossunder
Indicates that one entity passes or extends from one side to the other beneath another entity, forming an under-crossing relationship between them.
-
D.
hasNearbyCrossingPoint
Indicates that one location has a crossing point (such as a bridge, crosswalk, or intersection) situated close to it.
-
E.
hasAtGradeCrossingNearby
Indicates that one entity (typically a location or segment) has a nearby at-grade crossing where two transportation paths intersect at the same level.
- 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_69d7bdf1fcd081909ffb0e0d6fa3a07d |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d96d8e44188190840cd23d380bf23d |
completed | April 10, 2026, 9:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f68eb7e8448190a097d40ed8927285 |
completed | May 2, 2026, 11:54 p.m. |
| PD | Predicate disambiguation | batch_69d96409739881909174ba005a986cb5 |
completed | April 10, 2026, 8:56 p.m. |
| PDg | Predicate description generation | batch_69d96d87078c819083ea724238992204 |
completed | April 10, 2026, 9:37 p.m. |
Created at: April 9, 2026, 5:28 p.m.