Triple
T17465166
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Prairie View station |
E425256
|
entity |
| Predicate | ticketing |
P395
|
FINISHED |
| Object | Metra ticketing system |
—
|
NE NERFINISHED |
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: Metra ticketing system | Statement: [Prairie View station, ticketing, Metra ticketing system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metra ticketing system Context triple: [Prairie View station, ticketing, Metra ticketing system]
-
A.
Metra ticket office
chosen
The Metra ticket office is a staffed sales and customer service counter where passengers can purchase Metra train tickets and obtain travel information.
-
B.
NFTA Metro system
The NFTA Metro system is the public transit network serving the Buffalo–Niagara region of New York, providing bus and light rail services operated by the Niagara Frontier Transportation Authority.
-
C.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
D.
METRO Mobile Ticketing
METRO Mobile Ticketing is a digital fare payment app that lets riders purchase and use tickets on their smartphones for travel on the METRO local bus network.
-
E.
MARC fare system
The MARC fare system is the ticketing and pricing structure used by Maryland's MARC commuter rail service for travel across its network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d889dbc2e88190b18ea6115e819258 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e451a6c2e08190bca9de56ee2f5136 |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 10, 2026, 5:47 a.m.