Triple
T21907900
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Downtown Carrollton historic district |
E540986
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | DART commuter rail services |
—
|
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: DART commuter rail services | Statement: [Downtown Carrollton historic district, servedBy, DART commuter rail services]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: DART commuter rail services Context triple: [Downtown Carrollton historic district, servedBy, DART commuter rail services]
-
A.
MARC commuter rail
MARC commuter rail is a regional passenger train service in Maryland that connects suburban communities and nearby states with major employment centers like Washington, D.C. and Baltimore.
-
B.
AMT commuter rail network
The AMT commuter rail network was the former name of Greater Montreal’s regional passenger rail system, now operated under the Exo brand.
-
C.
Franklin Line commuter rail service
The Franklin Line commuter rail service is a Massachusetts Bay Transportation Authority (MBTA) commuter rail route connecting Boston with southwestern suburbs and towns in Norfolk County.
-
D.
A-train commuter rail
chosen
The A-train commuter rail is a regional passenger rail line in North Texas that connects Denton to the Dallas–Fort Worth area as part of the Denton County Transportation Authority network.
-
E.
Sounder commuter rail
Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
- 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_69e0c47b4e8c81908c8076eaa4c8e4f2 |
completed | April 16, 2026, 11:14 a.m. |
| NER | Named-entity recognition | batch_69f121d806688190b23502aacbfde4bd |
completed | April 28, 2026, 9:08 p.m. |
Created at: April 16, 2026, 7:39 p.m.