Triple
T1391293
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra |
E29963
|
entity |
| Predicate | operates |
P24
|
FINISHED |
| Object |
Heritage Corridor
Heritage Corridor is a Metra commuter rail line in the Chicago area that primarily serves communities along the historic Illinois and Michigan Canal corridor.
|
E159985
|
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: Heritage Corridor | Statement: [Metra, operates, Heritage Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heritage Corridor Context triple: [Metra, operates, Heritage Corridor]
-
A.
U.S. Civil Rights Trail
The U.S. Civil Rights Trail is a collection of historically significant sites across the United States that commemorate key events, locations, and figures of the Civil Rights Movement.
-
B.
National Millennium Trail
The National Millennium Trail is a U.S. program that recognizes historically and culturally significant long-distance trails, such as the Freedom Trail, as part of a national legacy of pathways.
-
C.
National Historic Trail
A National Historic Trail is a federally designated long-distance route in the United States that commemorates significant historical events, people, or cultural movements by preserving and interpreting their original travel corridors.
-
D.
National Parkways
National Parkways are specially designated scenic roadways in the United States that combine protected natural landscapes, recreational areas, and historic sites, managed as part of the National Park System.
-
E.
Frontier Pathways Scenic and Historic Byway
Frontier Pathways Scenic and Historic Byway is a designated scenic driving route in southern Colorado known for its dramatic mountain landscapes, historic sites, and cultural heritage.
- 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: Heritage Corridor Triple: [Metra, operates, Heritage Corridor]
Generated description
Heritage Corridor is a Metra commuter rail line in the Chicago area that primarily serves communities along the historic Illinois and Michigan Canal corridor.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Heritage Corridor Target entity description: Heritage Corridor is a Metra commuter rail line in the Chicago area that primarily serves communities along the historic Illinois and Michigan Canal corridor.
-
A.
U.S. Civil Rights Trail
The U.S. Civil Rights Trail is a collection of historically significant sites across the United States that commemorate key events, locations, and figures of the Civil Rights Movement.
-
B.
National Millennium Trail
The National Millennium Trail is a U.S. program that recognizes historically and culturally significant long-distance trails, such as the Freedom Trail, as part of a national legacy of pathways.
-
C.
National Historic Trail
A National Historic Trail is a federally designated long-distance route in the United States that commemorates significant historical events, people, or cultural movements by preserving and interpreting their original travel corridors.
-
D.
National Parkways
National Parkways are specially designated scenic roadways in the United States that combine protected natural landscapes, recreational areas, and historic sites, managed as part of the National Park System.
-
E.
Frontier Pathways Scenic and Historic Byway
Frontier Pathways Scenic and Historic Byway is a designated scenic driving route in southern Colorado known for its dramatic mountain landscapes, historic sites, and cultural heritage.
- 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_69a498dc92f8819094a1108f8ac90f43 |
completed | March 1, 2026, 7:51 p.m. |
| NER | Named-entity recognition | batch_69a4c35f7ab081909fe81dd475d6196f |
completed | March 1, 2026, 10:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acde24d1d88190bd6d602923270cd1 |
completed | March 8, 2026, 2:25 a.m. |
| NEDg | Description generation | batch_69acded052a88190945cf7a2af019c68 |
completed | March 8, 2026, 2:28 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69acdf41eb5c819088f2203f33995ccb |
completed | March 8, 2026, 2:30 a.m. |
Created at: March 1, 2026, 7:59 p.m.