Triple
T2524845
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | South Shore Line |
E56009
|
entity |
| Predicate | owner |
P347
|
FINISHED |
| Object |
Northern Indiana Commuter Transportation District
The Northern Indiana Commuter Transportation District is a public transit agency that oversees and funds commuter rail service in northern Indiana, including operations of the South Shore Line connecting the region to Chicago.
|
E278063
|
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: Northern Indiana Commuter Transportation District | Statement: [South Shore Line, owner, Northern Indiana Commuter Transportation District]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northern Indiana Commuter Transportation District Context triple: [South Shore Line, owner, Northern Indiana Commuter Transportation District]
-
A.
Sangamon Mass Transit District
Sangamon Mass Transit District is the primary public bus transportation agency serving Springfield and surrounding areas in Sangamon County, Illinois.
-
B.
Champaign–Urbana Mass Transit District
The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
-
C.
South Shore Line
The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
-
D.
Manchester Transit Authority
Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
-
E.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
- 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: Northern Indiana Commuter Transportation District Triple: [South Shore Line, owner, Northern Indiana Commuter Transportation District]
Generated description
The Northern Indiana Commuter Transportation District is a public transit agency that oversees and funds commuter rail service in northern Indiana, including operations of the South Shore Line connecting the region to Chicago.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northern Indiana Commuter Transportation District Target entity description: The Northern Indiana Commuter Transportation District is a public transit agency that oversees and funds commuter rail service in northern Indiana, including operations of the South Shore Line connecting the region to Chicago.
-
A.
Sangamon Mass Transit District
Sangamon Mass Transit District is the primary public bus transportation agency serving Springfield and surrounding areas in Sangamon County, Illinois.
-
B.
Champaign–Urbana Mass Transit District
The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
-
C.
South Shore Line
The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
-
D.
Manchester Transit Authority
Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
-
E.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
- 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_69ab4a48e4f081908f1218d244608659 |
completed | March 6, 2026, 9:42 p.m. |
| NER | Named-entity recognition | batch_69abd252f1c88190ac93604542f80f49 |
completed | March 7, 2026, 7:22 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af5cf0939c8190b7f7babc487c43cd |
completed | March 9, 2026, 11:51 p.m. |
| NEDg | Description generation | batch_69af5fc8dea48190bd363c5b3fae395e |
completed | March 10, 2026, 12:03 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69af6075ff1c8190aff09683c2d27317 |
completed | March 10, 2026, 12:06 a.m. |
Created at: March 6, 2026, 9:46 p.m.