Triple
T21637319
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra commuter rail services at Chicago Union Station |
E533993
|
entity |
| Predicate | line |
P1293
|
FINISHED |
| Object | Heritage Corridor |
—
|
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: Heritage Corridor | Statement: [Metra commuter rail services at Chicago Union Station, line, Heritage Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heritage Corridor Context triple: [Metra commuter rail services at Chicago Union Station, line, Heritage Corridor]
-
A.
Heritage Corridor
chosen
Heritage Corridor is a Metra commuter rail line in the Chicago area that primarily serves communities along the historic Illinois and Michigan Canal corridor.
-
B.
National Heritage Corridor
The National Heritage Corridor is a federally recognized cultural and historical region that preserves and interprets landscapes, communities, and resources significant to the United States’ industrial and cultural heritage.
-
C.
Cultural Heartland Route
The Cultural Heartland Route is a scenic tourism route in Mpumalanga, South Africa, known for its rich Ndebele culture, traditional art, and rural heritage experiences.
-
D.
Broadway Cultural Corridor
The Broadway Cultural Corridor is a vibrant district in San Antonio, Texas, known for its concentration of museums, cultural institutions, and family-friendly attractions.
-
E.
Great River Road corridor
The Great River Road corridor is a scenic travel route that follows the course of the Mississippi River through multiple states, connecting riverfront communities, historic sites, and natural landscapes.
- 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_69e0c465ae7481908577b7209fdb2a77 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69ef538eef0481908f5bf0e27f8e054d |
completed | April 27, 2026, 12:16 p.m. |
Created at: April 16, 2026, 6:35 p.m.