Triple
T15362941
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra at Jefferson Park |
E367334
|
entity |
| Predicate | fareZone |
P844
|
FINISHED |
| Object |
Metra Zone B
Metra Zone B is one of the inner fare zones in the Metra commuter rail system serving the Chicago metropolitan area, used to determine ticket prices for short-distance trips from downtown.
|
E1154236
|
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: Metra Zone B | Statement: [Metra at Jefferson Park, fareZone, Metra Zone B]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metra Zone B Context triple: [Metra at Jefferson Park, fareZone, Metra Zone B]
-
A.
Metra zone E
Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
-
B.
Metra zone D
Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
-
C.
Metra Rock Island District line
The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
-
D.
Metra Heritage Corridor
The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
-
E.
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.
- 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: Metra Zone B Triple: [Metra at Jefferson Park, fareZone, Metra Zone B]
Generated description
Metra Zone B is one of the inner fare zones in the Metra commuter rail system serving the Chicago metropolitan area, used to determine ticket prices for short-distance trips from downtown.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Metra Zone B Target entity description: Metra Zone B is one of the inner fare zones in the Metra commuter rail system serving the Chicago metropolitan area, used to determine ticket prices for short-distance trips from downtown.
-
A.
Metra zone E
Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
-
B.
Metra zone D
Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
-
C.
Metra Rock Island District line
The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
-
D.
Metra Heritage Corridor
The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
-
E.
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.
- 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_69d85a1483788190ad93c2748e8af34b |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e03e479f188190bbbc3dcd73853e02 |
completed | April 16, 2026, 1:41 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff1343862481908962dfe0ab946b97 |
completed | May 9, 2026, 10:58 a.m. |
| NEDg | Description generation | batch_69ff143c0e448190b4775711ee7545d1 |
completed | May 9, 2026, 11:02 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff14e1a7b881909ad2ba0d35847ea1 |
completed | May 9, 2026, 11:05 a.m. |
Created at: April 10, 2026, 3:18 a.m.