Triple
T19439935
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line West Branch |
E486321
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object |
Green Line Lake Street branch
The Green Line Lake Street branch is a segment of Boston’s MBTA Green Line light rail system that runs primarily along Beacon Street and serves neighborhoods in Brookline and Boston.
|
E1375059
|
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: Green Line Lake Street branch | Statement: [Green Line West Branch, connectsWith, Green Line Lake Street branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Green Line Lake Street branch Context triple: [Green Line West Branch, connectsWith, Green Line Lake Street branch]
-
A.
Red Line northwest branch
The Red Line northwest branch is a planned rapid transit extension serving the northwestern suburbs as part of the Red Line’s expanded corridor.
-
B.
LaSalle (Blue Line)
LaSalle is a Chicago 'L' Blue Line subway station located in the Loop, serving downtown commuters and connecting to nearby Metra and other transit services.
-
C.
Lake (Red Line)
Lake (Red Line) is a Chicago 'L' rapid transit station in the Loop that serves the Red Line beneath State Street.
-
D.
Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
-
E.
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.
- 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: Green Line Lake Street branch Triple: [Green Line West Branch, connectsWith, Green Line Lake Street branch]
Generated description
The Green Line Lake Street branch is a segment of Boston’s MBTA Green Line light rail system that runs primarily along Beacon Street and serves neighborhoods in Brookline and Boston.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Green Line Lake Street branch Target entity description: The Green Line Lake Street branch is a segment of Boston’s MBTA Green Line light rail system that runs primarily along Beacon Street and serves neighborhoods in Brookline and Boston.
-
A.
Red Line northwest branch
The Red Line northwest branch is a planned rapid transit extension serving the northwestern suburbs as part of the Red Line’s expanded corridor.
-
B.
LaSalle (Blue Line)
LaSalle is a Chicago 'L' Blue Line subway station located in the Loop, serving downtown commuters and connecting to nearby Metra and other transit services.
-
C.
Lake (Red Line)
Lake (Red Line) is a Chicago 'L' rapid transit station in the Loop that serves the Red Line beneath State Street.
-
D.
Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
-
E.
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.
- 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_69d8e8d7ad488190a3373045029b0f3b |
completed | April 10, 2026, 12:11 p.m. |
| NER | Named-entity recognition | batch_69e63364371081908e899c2a47af4e5d |
completed | April 20, 2026, 2:08 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0733e22b4c8190b992da00618be661 |
completed | May 15, 2026, 2:55 p.m. |
| NEDg | Description generation | batch_6a07353f35588190b7d6c1f2a34cce3c |
completed | May 15, 2026, 3:01 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0735c38b7881908489916ff2f2883e |
completed | May 15, 2026, 3:03 p.m. |
Created at: April 10, 2026, 1:38 p.m.