Triple
T15877265
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CTA Yellow Line |
E384981
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object |
Purple Line at Howard
The Purple Line at Howard is a Chicago Transit Authority rapid transit route that serves as a key connection point for trains running between the northern suburbs and the city’s North Side.
|
E1182814
|
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: Purple Line at Howard | Statement: [CTA Yellow Line, connectsWith, Purple Line at Howard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Purple Line at Howard Context triple: [CTA Yellow Line, connectsWith, Purple Line at Howard]
-
A.
Yellow Line at Howard
Yellow Line at Howard is a Chicago Transit Authority rapid transit service that begins at Howard station, providing Yellow Line trains with access to the rest of the ‘L’ network.
-
B.
Red Line at Howard
Red Line at Howard is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as the northern terminus of the Red Line and a key transfer point to other ‘L’ routes.
-
C.
Purple Line at Clark/Lake
The Purple Line at Clark/Lake is a Chicago 'L' rapid transit service that stops at the downtown Clark/Lake station complex in the Loop.
-
D.
Red Line at Jackson
The Red Line at Jackson is a major Chicago 'L' subway station in the Loop that serves the CTA Red Line and provides a key downtown transfer point between multiple rail lines.
-
E.
Purple Line
The Purple Line is a light rail route in Houston, Texas, that serves as part of the METRORail system, connecting downtown with southeastern neighborhoods and key destinations.
- 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: Purple Line at Howard Triple: [CTA Yellow Line, connectsWith, Purple Line at Howard]
Generated description
The Purple Line at Howard is a Chicago Transit Authority rapid transit route that serves as a key connection point for trains running between the northern suburbs and the city’s North Side.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Purple Line at Howard Target entity description: The Purple Line at Howard is a Chicago Transit Authority rapid transit route that serves as a key connection point for trains running between the northern suburbs and the city’s North Side.
-
A.
Yellow Line at Howard
Yellow Line at Howard is a Chicago Transit Authority rapid transit service that begins at Howard station, providing Yellow Line trains with access to the rest of the ‘L’ network.
-
B.
Red Line at Howard
Red Line at Howard is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as the northern terminus of the Red Line and a key transfer point to other ‘L’ routes.
-
C.
Purple Line at Clark/Lake
The Purple Line at Clark/Lake is a Chicago 'L' rapid transit service that stops at the downtown Clark/Lake station complex in the Loop.
-
D.
Red Line at Jackson
The Red Line at Jackson is a major Chicago 'L' subway station in the Loop that serves the CTA Red Line and provides a key downtown transfer point between multiple rail lines.
-
E.
Purple Line
The Purple Line is a rapid transit line that forms part of the Baku Metro system in Baku, Azerbaijan.
- 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_69d86da4e86481909f1325fdc971b5ec |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e155fec9d4819081efea504e1e3952 |
completed | April 16, 2026, 9:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffb043b6d48190bf9a36a3e00403c0 |
completed | May 9, 2026, 10:08 p.m. |
| NEDg | Description generation | batch_69ffb13fdb6c819091c3ee5c1f199031 |
completed | May 9, 2026, 10:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ffb208aef881909b3a00e0015c27df |
completed | May 9, 2026, 10:15 p.m. |
Created at: April 10, 2026, 4:51 a.m.