Triple
T2076500
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Red Line (MBTA) |
E44935
|
entity |
| Predicate | connectsStation |
P845
|
FINISHED |
| Object |
Charles/MGH station
Charles/MGH station is an elevated Massachusetts Bay Transportation Authority subway stop in Boston serving the Red Line near the Charles River and Massachusetts General Hospital.
|
E230578
|
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: Charles/MGH station | Statement: [Red Line (MBTA), connectsStation, Charles/MGH station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Charles/MGH station Context triple: [Red Line (MBTA), connectsStation, Charles/MGH station]
-
A.
Tufts Medical Center station
Tufts Medical Center station is an underground rapid transit stop in Boston, Massachusetts, located in the Chinatown/South Cove area and serving the MBTA Orange Line.
-
B.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
-
C.
Harvard station
Harvard station is a major Red Line subway and bus hub on the Massachusetts Bay Transportation Authority (MBTA) system located in Harvard Square in Cambridge, Massachusetts.
-
D.
Boylston station
Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
-
E.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
- 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: Charles/MGH station Triple: [Red Line (MBTA), connectsStation, Charles/MGH station]
Generated description
Charles/MGH station is an elevated Massachusetts Bay Transportation Authority subway stop in Boston serving the Red Line near the Charles River and Massachusetts General Hospital.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Charles/MGH station Target entity description: Charles/MGH station is an elevated Massachusetts Bay Transportation Authority subway stop in Boston serving the Red Line near the Charles River and Massachusetts General Hospital.
-
A.
Tufts Medical Center station
Tufts Medical Center station is an underground rapid transit stop in Boston, Massachusetts, located in the Chinatown/South Cove area and serving the MBTA Orange Line.
-
B.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
-
C.
Harvard station
Harvard station is a major Red Line subway and bus hub on the Massachusetts Bay Transportation Authority (MBTA) system located in Harvard Square in Cambridge, Massachusetts.
-
D.
Boylston station
Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
-
E.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
- 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_69a88916c2b48190a5ca2e9b12cad3ed |
completed | March 4, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69abba127dcc81909c2365d455eeb746 |
completed | March 7, 2026, 5:39 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae2734a0688190a43c9687af48d06d |
completed | March 9, 2026, 1:49 a.m. |
| NEDg | Description generation | batch_69ae28155ec8819097741dcfd3d81110 |
completed | March 9, 2026, 1:53 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae2889503c8190bc72e786c656edf3 |
completed | March 9, 2026, 1:55 a.m. |
Created at: March 4, 2026, 7:41 p.m.