Triple
T269479
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line D branch |
E5598
|
entity |
| Predicate | hasTerminus |
P388
|
FINISHED |
| Object |
Government Center station
Government Center station is a major Boston subway hub and transfer point in downtown Boston, serving multiple MBTA Green Line branches and the Blue Line.
|
E50931
|
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: Government Center station | Statement: [MBTA Green Line D branch, hasTerminus, Government Center station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Government Center station Context triple: [MBTA Green Line D branch, hasTerminus, Government Center station]
-
A.
Convention Center station
Convention Center station is a light rail stop in downtown Baltimore, Maryland, serving the Baltimore Light RailLink system near the Baltimore Convention Center.
-
B.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
-
C.
Concourse B Station
Concourse B Station is an AeroTrain passenger rail stop serving Concourse B at Washington Dulles International Airport, providing automated transit between terminals.
-
D.
Roosevelt station
Roosevelt station is a major Chicago 'L' rapid transit stop in the South Loop that serves as a key access point to nearby attractions including the Field Museum, Shedd Aquarium, and Soldier Field.
-
E.
Ruggles station
Ruggles station is a major multimodal transit hub in Boston, Massachusetts, serving MBTA Orange Line trains, multiple commuter rail lines, and numerous bus routes.
- 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: Government Center station Triple: [MBTA Green Line D branch, hasTerminus, Government Center station]
Generated description
Government Center station is a major Boston subway hub and transfer point in downtown Boston, serving multiple MBTA Green Line branches and the Blue Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Government Center station Target entity description: Government Center station is a major Boston subway hub and transfer point in downtown Boston, serving multiple MBTA Green Line branches and the Blue Line.
-
A.
Convention Center station
Convention Center station is a light rail stop in downtown Baltimore, Maryland, serving the Baltimore Light RailLink system near the Baltimore Convention Center.
-
B.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
-
C.
Concourse B Station
Concourse B Station is an AeroTrain passenger rail stop serving Concourse B at Washington Dulles International Airport, providing automated transit between terminals.
-
D.
Roosevelt station
Roosevelt station is a major Chicago 'L' rapid transit stop in the South Loop that serves as a key access point to nearby attractions including the Field Museum, Shedd Aquarium, and Soldier Field.
-
E.
Ruggles station
Ruggles station is a major multimodal transit hub in Boston, Massachusetts, serving MBTA Orange Line trains, multiple commuter rail lines, and numerous bus routes.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasTerminus Context triple: [MBTA Green Line D branch, hasTerminus, Government Center station]
-
A.
hasTerm
Indicates that an entity includes, is associated with, or is defined by a specific term or condition.
-
B.
terminus
chosen
Indicates that one entity serves as the final endpoint or stopping place for another entity’s movement, route, or process.
-
C.
hasSouthernTerminus
Indicates that one entity serves as the southern endpoint or terminus of another entity, such as a route, line, or path.
-
D.
hasConditionalEnding
Indicates that one entity concludes or terminates only if a specified condition involving another entity is met.
-
E.
hasSurvivorTerm
Indicates that an entity is associated with a term or label specifically used to describe survivors of an event, condition, or circumstance.
- F. None of above.
Provenance (6 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_69a25853594c8190b05ec3a586ec88bf |
completed | Feb. 28, 2026, 2:52 a.m. |
| NER | Named-entity recognition | batch_69a25db00ed48190be6f598807265356 |
completed | Feb. 28, 2026, 3:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a41036753481908f7787a077a72048 |
completed | March 1, 2026, 10:08 a.m. |
| NEDg | Description generation | batch_69a411f827448190a4a999467234d1fb |
completed | March 1, 2026, 10:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a412168ccc819095284641fe59d351 |
completed | March 1, 2026, 10:16 a.m. |
| PD | Predicate disambiguation | batch_69a25b70d99c819085d8381a313a2a34 |
completed | Feb. 28, 2026, 3:05 a.m. |
Created at: Feb. 28, 2026, 2:57 a.m.