Triple
T19659436
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Howard station (CTA Red Line) |
E472039
|
entity |
| Predicate | fareZone |
P844
|
FINISHED |
| Object |
CTA single-zone system
The CTA single-zone system is a fare structure used by Chicago's transit authority in which the same base fare applies across the entire network rather than varying by distance or zones.
|
E1388403
|
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: CTA single-zone system | Statement: [Howard station (CTA Red Line), fareZone, CTA single-zone system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CTA single-zone system Context triple: [Howard station (CTA Red Line), fareZone, CTA single-zone system]
-
A.
Central station
Central station is a major Mass Transit Railway (MTR) interchange and one of the busiest transport hubs on Hong Kong Island, connecting multiple urban rail lines and pedestrian networks.
-
B.
Central station
Central station is a major railway hub providing key train connections for travelers to and from Cambridge city center.
-
C.
Central station
Central station is a key Massachusetts Bay Transportation Authority (MBTA) subway stop on the Red Line located in Cambridge, Massachusetts, serving the Central Square area.
-
D.
CTC/Arena Station
CTC/Arena Station is a light rail station in Charlotte, North Carolina, serving the Spectrum Center and the surrounding uptown area.
-
E.
CTA
CTA is the IATA airport code for Catania–Fontanarossa Airport, the main international airport serving Catania and eastern Sicily, Italy.
- 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: CTA single-zone system Triple: [Howard station (CTA Red Line), fareZone, CTA single-zone system]
Generated description
The CTA single-zone system is a fare structure used by Chicago's transit authority in which the same base fare applies across the entire network rather than varying by distance or zones.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CTA single-zone system Target entity description: The CTA single-zone system is a fare structure used by Chicago's transit authority in which the same base fare applies across the entire network rather than varying by distance or zones.
-
A.
Central station
Central station is a major Mass Transit Railway (MTR) interchange and one of the busiest transport hubs on Hong Kong Island, connecting multiple urban rail lines and pedestrian networks.
-
B.
Central station
Central station is a major railway hub providing key train connections for travelers to and from Cambridge city center.
-
C.
Central station
Central station is a key Massachusetts Bay Transportation Authority (MBTA) subway stop on the Red Line located in Cambridge, Massachusetts, serving the Central Square area.
-
D.
CTC/Arena Station
CTC/Arena Station is a light rail station in Charlotte, North Carolina, serving the Spectrum Center and the surrounding uptown area.
-
E.
CTA
CTA is the IATA airport code for Catania–Fontanarossa Airport, the main international airport serving Catania and eastern Sicily, Italy.
- 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_69d8e51395348190ac1416d46dfc6db0 |
completed | April 10, 2026, 11:54 a.m. |
| NER | Named-entity recognition | batch_69e641485ce481908b3860fa5e3a9f6e |
completed | April 20, 2026, 3:07 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a077ef5e3108190b2f7f05a01f81fc1 |
completed | May 15, 2026, 8:15 p.m. |
| NEDg | Description generation | batch_6a07801618c88190a4073957960b36c6 |
completed | May 15, 2026, 8:20 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0780f798888190847de6b2951d879b |
completed | May 15, 2026, 8:24 p.m. |
Created at: April 10, 2026, 1:45 p.m.