Triple
T17233314
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tom Hunter station |
E418299
|
entity |
| Predicate | partOfExtension |
P35
|
FINISHED |
| Object |
LYNX Blue Line Northeast Corridor extension
The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
|
E1257027
|
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: LYNX Blue Line Northeast Corridor extension | Statement: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: LYNX Blue Line Northeast Corridor extension Context triple: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
-
A.
Northeast Corridor extension to Virginia
The Northeast Corridor extension to Virginia is the southern continuation of Amtrak’s primary high-speed rail route, carrying intercity and commuter trains from Washington, D.C. through northern and central Virginia.
-
B.
Northeast Corridor Improvement Program
The Northeast Corridor Improvement Program was a major U.S. rail infrastructure initiative launched in the 1970s to modernize and upgrade the heavily used passenger rail line between Boston, New York, and Washington, D.C.
-
C.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
D.
Green Line southern extension
The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
-
E.
Mattapan High-Speed Line
The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
- 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: LYNX Blue Line Northeast Corridor extension Triple: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
Generated description
The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: LYNX Blue Line Northeast Corridor extension Target entity description: The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
-
A.
Northeast Corridor extension to Virginia
The Northeast Corridor extension to Virginia is the southern continuation of Amtrak’s primary high-speed rail route, carrying intercity and commuter trains from Washington, D.C. through northern and central Virginia.
-
B.
Northeast Corridor Improvement Program
The Northeast Corridor Improvement Program was a major U.S. rail infrastructure initiative launched in the 1970s to modernize and upgrade the heavily used passenger rail line between Boston, New York, and Washington, D.C.
-
C.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
D.
Green Line southern extension
The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
-
E.
Mattapan High-Speed Line
The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
- 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_69d886d8e96081909870bff6c3d0bf09 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e42df9558481909e2e50ae0b02acf7 |
completed | April 19, 2026, 1:20 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a016760873c8190bab70ad4ca0c6d8e |
completed | May 11, 2026, 5:21 a.m. |
| NEDg | Description generation | batch_6a016838367c8190b5117d5314f71a16 |
completed | May 11, 2026, 5:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0168976af88190a5f839a93538ac6f |
completed | May 11, 2026, 5:26 a.m. |
Created at: April 10, 2026, 5:39 a.m.