Triple
T589780
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Central Subway |
E17240
|
entity |
| Predicate | partOfProject |
P10
|
FINISHED |
| Object |
Third Street Light Rail Project Phase 2
Third Street Light Rail Project Phase 2 is a San Francisco Municipal Railway expansion phase that includes the Central Subway to extend light rail service through downtown and Chinatown.
|
E73822
|
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: Third Street Light Rail Project Phase 2 | Statement: [Central Subway, partOfProject, Third Street Light Rail Project Phase 2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Third Street Light Rail Project Phase 2 Context triple: [Central Subway, partOfProject, Third Street Light Rail Project Phase 2]
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
-
D.
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.
-
E.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
- 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: Third Street Light Rail Project Phase 2 Triple: [Central Subway, partOfProject, Third Street Light Rail Project Phase 2]
Generated description
Third Street Light Rail Project Phase 2 is a San Francisco Municipal Railway expansion phase that includes the Central Subway to extend light rail service through downtown and Chinatown.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Third Street Light Rail Project Phase 2 Target entity description: Third Street Light Rail Project Phase 2 is a San Francisco Municipal Railway expansion phase that includes the Central Subway to extend light rail service through downtown and Chinatown.
-
A.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
B.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
C.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
-
D.
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.
-
E.
Newark Light Rail
Newark Light Rail is a light rail transit system serving the city of Newark, New Jersey, connecting downtown, residential neighborhoods, and key regional transit hubs.
- 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_69a49379d09c8190ac7e00b24e2810b1 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a49bb775fc819085b968f8615dca59 |
completed | March 1, 2026, 8:04 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a5103be4b881908fcd20c4c781c0a0 |
completed | March 2, 2026, 4:21 a.m. |
| NEDg | Description generation | batch_69a5140f86148190b9f3dd70fa6b0f42 |
completed | March 2, 2026, 4:37 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a5146662488190b2d9024d6d999fa3 |
completed | March 2, 2026, 4:39 a.m. |
Created at: March 1, 2026, 7:33 p.m.