Triple
T4047946
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Transbay Tube |
E84112
|
entity |
| Predicate | isKeyLinkIn |
P32978
|
FINISHED |
| Object |
Transbay corridor
The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
|
E84112
|
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: Transbay corridor | Statement: [Transbay Tube, isKeyLinkIn, Transbay corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Transbay corridor Context triple: [Transbay Tube, isKeyLinkIn, Transbay corridor]
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Transbay Tube
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
-
C.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
-
D.
Golden Gate Bridge corridor
The Golden Gate Bridge corridor is the major transportation route spanning the Golden Gate Strait in the San Francisco Bay Area, encompassing the iconic Golden Gate Bridge and its approaches for vehicular, bicycle, and pedestrian traffic.
-
E.
Southwest Corridor
The Southwest Corridor is a major transportation and greenway corridor in Boston that combines rail lines, parks, and bike paths connecting downtown with southwestern 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: Transbay corridor Triple: [Transbay Tube, isKeyLinkIn, Transbay corridor]
Generated description
The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Transbay corridor Target entity description: The Transbay corridor is a major transportation route connecting San Francisco with cities across the San Francisco Bay, carrying heavy commuter and regional transit traffic.
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Transbay Tube
chosen
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
-
C.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
-
D.
Golden Gate Bridge corridor
The Golden Gate Bridge corridor is the major transportation route spanning the Golden Gate Strait in the San Francisco Bay Area, encompassing the iconic Golden Gate Bridge and its approaches for vehicular, bicycle, and pedestrian traffic.
-
E.
Southwest Corridor
The Southwest Corridor is a major transportation and greenway corridor in Boston that combines rail lines, parks, and bike paths connecting downtown with southwestern neighborhoods.
- 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_69aed930bd5c819083e7dcc14fc44f69 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aefb81040481909b22e4c445ecae0f |
completed | March 9, 2026, 4:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5565466648190802a9b8fd88c3572 |
completed | March 14, 2026, 12:36 p.m. |
| NEDg | Description generation | batch_69b556cdd05081909fea1fb0a58bc7d1 |
completed | March 14, 2026, 12:38 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b557d445d081908f48fe3bd06f786e |
completed | March 14, 2026, 12:43 p.m. |
Created at: March 9, 2026, 3:37 p.m.