Triple
T9081850
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Langley Park, Maryland |
E217646
|
entity |
| Predicate | plannedTransit |
P87097
|
FINISHED |
| Object |
Purple Line light rail corridor
The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
|
E784353
|
NE FINISHED |
How this triple was built (5 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 light rail corridor | Statement: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Purple Line light rail corridor Context triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
-
A.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
B.
Central Light Rail Line
The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
-
C.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
D.
Purple Line
The Purple Line is a major rapid transit corridor of Bengaluru’s Namma Metro system, connecting key residential and commercial areas across the city.
-
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 light rail corridor Triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
Generated description
The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Purple Line light rail corridor Target entity description: The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
-
A.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
B.
Central Light Rail Line
The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
-
C.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
D.
Purple Line
The Purple Line is a major rapid transit corridor of Bengaluru’s Namma Metro system, connecting key residential and commercial areas across the city.
-
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
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: plannedTransit Context triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
-
A.
transportPlanned
Indicates that an arrangement has been made for something or someone to be transported from one place to another.
-
B.
transportationPlanned
Indicates that an arrangement has been made for someone or something to be transported from one place to another.
-
C.
publicTransit
Indicates that one entity provides or is connected via shared, scheduled transportation services (such as buses, trains, or subways) that are available for use by the general public.
-
D.
providesUrbanTransport
Indicates that one entity supplies or operates transportation services within an urban or city environment for another entity or the public.
-
E.
plannedVia
Indicates that something is arranged, organized, or scheduled by means of a particular method, process, or intermediary.
- F. None of above. chosen
Provenance (7 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_69ca83d7a0388190ba1af89ed7ba36f9 |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69cc9608a82481908918821884ba5796 |
completed | April 1, 2026, 3:50 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d05bed784c8190aa538a037bb2eeb8 |
completed | April 4, 2026, 12:31 a.m. |
| NEDg | Description generation | batch_69d05fca234481909a1b6547e014f2d6 |
completed | April 4, 2026, 12:48 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d05feb2cc48190983d538b2a88b620 |
completed | April 4, 2026, 12:48 a.m. |
| PD | Predicate disambiguation | batch_69cc65fa79bc81908b46f05c8bba920f |
completed | April 1, 2026, 12:25 a.m. |
| PDg | Predicate description generation | batch_69cc6a3c78388190a7436acc0e44ff55 |
completed | April 1, 2026, 12:43 a.m. |
Created at: March 30, 2026, 7:13 p.m.