Triple
T1559991
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Littleton/Route 495 station |
E33296
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object |
Littleton station
Littleton station is a commuter rail stop in Littleton, Massachusetts, serving MBTA's Fitchburg Line and providing regional access to the Greater Boston area.
|
E178004
|
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: Littleton station | Statement: [Littleton/Route 495 station, formerName, Littleton station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Littleton station Context triple: [Littleton/Route 495 station, formerName, Littleton station]
-
A.
Butler station
Butler station is a small MBTA light rail stop on Boston’s historic Mattapan trolley line in the Dorchester/Mattapan area.
-
B.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
C.
Milton station
Milton station is a light rail stop on the MBTA's Mattapan Trolley line in Milton, Massachusetts, serving local commuters on the Red Line's historic trolley branch.
-
D.
Riverside station
Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
-
E.
Newton Highlands station
Newton Highlands station is a light rail stop on the Massachusetts Bay Transportation Authority's Green Line D branch located in the Newton Highlands neighborhood of Newton, 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: Littleton station Triple: [Littleton/Route 495 station, formerName, Littleton station]
Generated description
Littleton station is a commuter rail stop in Littleton, Massachusetts, serving MBTA's Fitchburg Line and providing regional access to the Greater Boston area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Littleton station Target entity description: Littleton station is a commuter rail stop in Littleton, Massachusetts, serving MBTA's Fitchburg Line and providing regional access to the Greater Boston area.
-
A.
Butler station
Butler station is a small MBTA light rail stop on Boston’s historic Mattapan trolley line in the Dorchester/Mattapan area.
-
B.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
C.
Milton station
Milton station is a light rail stop on the MBTA's Mattapan Trolley line in Milton, Massachusetts, serving local commuters on the Red Line's historic trolley branch.
-
D.
Riverside station
Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
-
E.
Newton Highlands station
Newton Highlands station is a light rail stop on the Massachusetts Bay Transportation Authority's Green Line D branch located in the Newton Highlands neighborhood of Newton, 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_69a885ef9cf48190b0af0f5ce3d02231 |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69a90885d6208190b4b7d6ad336d4d16 |
completed | March 5, 2026, 4:37 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad3712e2ac81908c66f18fa89d46f2 |
completed | March 8, 2026, 8:45 a.m. |
| NEDg | Description generation | batch_69ad39f88fb48190982ca19392992008 |
completed | March 8, 2026, 8:57 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad3a7c99108190b9fdb929fe2118c1 |
completed | March 8, 2026, 8:59 a.m. |
Created at: March 4, 2026, 7:27 p.m.