Triple
T13441361
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | State Street Subway |
E320367
|
entity |
| Predicate | connectsTo |
P845
|
FINISHED |
| Object |
Dan Ryan branch of Red Line
The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
|
E1040964
|
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: Dan Ryan branch of Red Line | Statement: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dan Ryan branch of Red Line Context triple: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
-
A.
95th/Dan Ryan station
95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
-
B.
Belmont station (CTA Red Line)
Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
-
C.
Addison station (CTA Red Line)
Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
-
D.
Green Line Union Square branch
The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
-
E.
North Side Main Line (CTA Red Line)
The North Side Main Line is a major elevated rapid transit corridor in Chicago that carries the Chicago Transit Authority's Red Line trains through the city's North Side neighborhoods.
- 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: Dan Ryan branch of Red Line Triple: [State Street Subway, connectsTo, Dan Ryan branch of Red Line]
Generated description
The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Dan Ryan branch of Red Line Target entity description: The Dan Ryan branch of the Red Line is a rapid transit corridor on Chicago’s South Side that runs in the median of the Dan Ryan Expressway, serving as a major commuter route into the city’s downtown.
-
A.
95th/Dan Ryan station
95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
-
B.
Belmont station (CTA Red Line)
Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
-
C.
Addison station (CTA Red Line)
Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
-
D.
Green Line Union Square branch
The Green Line Union Square branch is a light rail extension of Boston’s MBTA Green Line that serves the Union Square area of Somerville, Massachusetts.
-
E.
North Side Main Line (CTA Red Line)
The North Side Main Line is a major elevated rapid transit corridor in Chicago that carries the Chicago Transit Authority's Red Line trains through the city's North Side neighborhoods.
- 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_69d80761e6cc8190a90c844589998ecc |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbaee704ac8190b4c7f4e0d3a88494 |
completed | April 12, 2026, 2:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7399421908190a7750e37c89a73f6 |
completed | May 3, 2026, 12:03 p.m. |
| NEDg | Description generation | batch_69f73b5f6d60819099f405d5d97e68e9 |
completed | May 3, 2026, 12:11 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f73f549af081908ed018a18b3f31f7 |
completed | May 3, 2026, 12:28 p.m. |
Created at: April 9, 2026, 9:40 p.m.