Triple
T750494
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | O'Hare International Airport |
E15435
|
entity |
| Predicate | hasTransportConnection |
P845
|
FINISHED |
| Object | Metra North Central Service |
E29963
|
NE FINISHED |
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 North Central Service | Statement: [O'Hare International Airport, hasTransportConnection, Metra North Central Service]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metra North Central Service Context triple: [O'Hare International Airport, hasTransportConnection, Metra North Central Service]
-
A.
Metra
chosen
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
B.
Metra Electric District line
The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
-
C.
Metra Union Pacific West Line
The Metra Union Pacific West Line is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, including communities in DuPage County.
-
D.
South Shore Line
The South Shore Line is an electric commuter rail service connecting Chicago with communities in northern Indiana, including Gary.
-
E.
CTA Blue Line
The CTA Blue Line is a major Chicago 'L' rapid transit route that runs between O'Hare International Airport, downtown Chicago, and the city's western neighborhoods and suburbs.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a493599a0081908da65f3407af1ef2 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a4a64adf2c81908e48090be35dd9d9 |
completed | March 1, 2026, 8:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a66671ebd48190a785be0ae0d3588c |
completed | March 3, 2026, 4:41 a.m. |
Created at: March 1, 2026, 7:37 p.m.