Triple
T4933484
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pulaski station (CTA Orange Line) |
E110751
|
entity |
| Predicate | servesAirportCorridor |
P23780
|
FINISHED |
| Object |
Midway Airport branch of Orange Line
The Midway Airport branch of the Orange Line is the Chicago Transit Authority rapid transit segment that connects downtown Chicago to Midway International Airport and nearby Southwest Side neighborhoods.
|
E481912
|
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: Midway Airport branch of Orange Line | Statement: [Pulaski station (CTA Orange Line), servesAirportCorridor, Midway Airport branch of Orange Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Midway Airport branch of Orange Line Context triple: [Pulaski station (CTA Orange Line), servesAirportCorridor, Midway Airport branch of Orange Line]
-
A.
Red Line Braintree Branch
The Red Line Braintree Branch is a southern extension of Boston's MBTA Red Line rapid transit system that serves communities between Quincy and Braintree.
-
B.
Mitchell Airport Rail Station
Mitchell Airport Rail Station is a passenger rail station in Milwaukee, Wisconsin, serving General Mitchell International Airport and providing regional rail connections for air travelers.
-
C.
Ashmont–Braintree branch of the Red Line
The Ashmont–Braintree branch of the Red Line is a major rapid transit corridor of Boston’s MBTA system, running south from downtown Boston to the suburbs of Ashmont and Braintree.
-
D.
MBTA Lansdowne
MBTA Lansdowne is a commuter rail station in Boston, Massachusetts, serving the Framingham/Worcester Line near Fenway Park.
-
E.
MBTA Green Line E branch stations
MBTA Green Line E branch stations are light rail stops in Boston and nearby areas served by the E branch of the Massachusetts Bay Transportation Authority’s Green Line.
- 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: Midway Airport branch of Orange Line Triple: [Pulaski station (CTA Orange Line), servesAirportCorridor, Midway Airport branch of Orange Line]
Generated description
The Midway Airport branch of the Orange Line is the Chicago Transit Authority rapid transit segment that connects downtown Chicago to Midway International Airport and nearby Southwest Side neighborhoods.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Midway Airport branch of Orange Line Target entity description: The Midway Airport branch of the Orange Line is the Chicago Transit Authority rapid transit segment that connects downtown Chicago to Midway International Airport and nearby Southwest Side neighborhoods.
-
A.
Red Line Braintree Branch
The Red Line Braintree Branch is a southern extension of Boston's MBTA Red Line rapid transit system that serves communities between Quincy and Braintree.
-
B.
Mitchell Airport Rail Station
Mitchell Airport Rail Station is a passenger rail station in Milwaukee, Wisconsin, serving General Mitchell International Airport and providing regional rail connections for air travelers.
-
C.
Ashmont–Braintree branch of the Red Line
The Ashmont–Braintree branch of the Red Line is a major rapid transit corridor of Boston’s MBTA system, running south from downtown Boston to the suburbs of Ashmont and Braintree.
-
D.
MBTA Lansdowne
MBTA Lansdowne is a commuter rail station in Boston, Massachusetts, serving the Framingham/Worcester Line near Fenway Park.
-
E.
MBTA Green Line E branch stations
MBTA Green Line E branch stations are light rail stops in Boston and nearby areas served by the E branch of the Massachusetts Bay Transportation Authority’s Green Line.
- 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_69bd4415190c8190817bee7ec9f9f944 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd70652d988190ba4a493db510952e |
completed | March 20, 2026, 4:05 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be77b41c4c8190b4f714334242bc9b |
completed | March 21, 2026, 10:49 a.m. |
| NEDg | Description generation | batch_69be7b9611a881908e83086719406145 |
completed | March 21, 2026, 11:05 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69be7ce630248190b274547eaa15fe85 |
completed | March 21, 2026, 11:11 a.m. |
Created at: March 20, 2026, 1:30 p.m.