Triple
T21637299
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra commuter rail services at Chicago Union Station |
E533993
|
entity |
| Predicate | primaryCityServed |
P82
|
FINISHED |
| Object | Chicago |
—
|
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: Chicago | Statement: [Metra commuter rail services at Chicago Union Station, primaryCityServed, Chicago]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago Context triple: [Metra commuter rail services at Chicago Union Station, primaryCityServed, Chicago]
-
A.
Chicago
Chicago is a long-running, Tony Award–winning Broadway musical known for its jazz-influenced score, satirical take on crime and celebrity, and iconic Bob Fosse–style choreography.
-
B.
Chicago
chosen
Chicago is a major U.S. city in Illinois known for its significant cultural, economic, and academic influence, including its prominent universities and research institutions.
-
C.
Chicago
Chicago is a 1927 American silent crime-comedy film that satirically portrays the scandalous rise to fame of a woman accused of murder, adapted from Maurine Dallas Watkins' play of the same name.
-
D.
Chicago
"Chicago" is a novel by Egyptian author Alaa Al Aswany that intertwines the lives of Arab and American characters in the city of Chicago to explore themes of identity, politics, and exile.
-
E.
Chicago
"Chicago" is a politically charged 1971 protest song by British singer-songwriter Graham Nash, inspired by the 1968 Democratic National Convention and the trial of the Chicago Eight.
- 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.