Triple
T137303
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MARC Train |
E2774
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Maryland Transit Administration |
E16026
|
NE FINISHED |
How this triple was built (2 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: Maryland Transit Administration | Statement: [MARC Train, operator, Maryland Transit Administration]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Maryland Transit Administration Context triple: [MARC Train, operator, Maryland Transit Administration]
-
A.
Washington Metropolitan Area Transit Authority
The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
-
B.
Maryland Department of Transportation
chosen
The Maryland Department of Transportation is the statewide agency responsible for planning, building, operating, and maintaining Maryland’s transportation systems, including highways, transit, ports, aviation, and rail services.
-
C.
Metropolitan Atlanta Rapid Transit Authority (MARTA)
The Metropolitan Atlanta Rapid Transit Authority (MARTA) is the primary public transportation agency serving the Atlanta metropolitan area, operating a network of heavy rail, bus, and paratransit services.
-
D.
Potomac and Rappahannock Transportation Commission
The Potomac and Rappahannock Transportation Commission is a regional transit agency in Northern Virginia that oversees and funds commuter rail and bus services for member jurisdictions south of Washington, D.C.
-
E.
Tompkins Consolidated Area Transit
Tompkins Consolidated Area Transit is the primary public bus system serving Ithaca and the surrounding Tompkins County region in New York.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a2521e35c08190b28e5c9f1e3c9b59 |
completed | Feb. 28, 2026, 2:25 a.m. |
| NER | Named-entity recognition | batch_69a257a6cab88190944c8f74d8d1605c |
completed | Feb. 28, 2026, 2:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2d4c838908190ae67f4e58fd700b0 |
completed | Feb. 28, 2026, 11:43 a.m. |
Created at: Feb. 28, 2026, 2:31 a.m.