Triple
T21577986
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Transportation in Middlesex County, Massachusetts |
E532448
|
entity |
| Predicate | containsFacility |
P12416
|
FINISHED |
| Object |
Medford/Tufts Station
Medford/Tufts Station is a Massachusetts Bay Transportation Authority (MBTA) Green Line light rail station serving the Tufts University area in Medford, Massachusetts.
|
E1491716
|
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: Medford/Tufts Station | Statement: [Transportation in Middlesex County, Massachusetts, containsFacility, Medford/Tufts Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Medford/Tufts Station Context triple: [Transportation in Middlesex County, Massachusetts, containsFacility, Medford/Tufts Station]
-
A.
Brookline
Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
-
B.
Norwell
Norwell is a suburban town in Plymouth County, Massachusetts, known for its residential character, conservation land, and location along the North River.
-
C.
Winthrop Junction
Winthrop Junction was a former railroad junction and station in Winthrop, Massachusetts, that connected local rail service to the Boston, Revere Beach and Lynn Railroad network.
-
D.
North Andover
North Andover is a suburban town in northeastern Massachusetts known for its residential character, historic sites, and proximity to the city of Lawrence.
-
E.
Waltham
Waltham is a village in North East Lincolnshire, England, situated near the seaside resort of Cleethorpes.
- 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: Medford/Tufts Station Triple: [Transportation in Middlesex County, Massachusetts, containsFacility, Medford/Tufts Station]
Generated description
Medford/Tufts Station is a Massachusetts Bay Transportation Authority (MBTA) Green Line light rail station serving the Tufts University area in Medford, Massachusetts.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Medford/Tufts Station Target entity description: Medford/Tufts Station is a Massachusetts Bay Transportation Authority (MBTA) Green Line light rail station serving the Tufts University area in Medford, Massachusetts.
-
A.
Brookline
Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
-
B.
Norwell
Norwell is a suburban town in Plymouth County, Massachusetts, known for its residential character, conservation land, and location along the North River.
-
C.
Winthrop Junction
Winthrop Junction was a former railroad junction and station in Winthrop, Massachusetts, that connected local rail service to the Boston, Revere Beach and Lynn Railroad network.
-
D.
North Andover
North Andover is a suburban town in northeastern Massachusetts known for its residential character, historic sites, and proximity to the city of Lawrence.
-
E.
Waltham
Waltham is a village in North East Lincolnshire, England, situated near the seaside resort of Cleethorpes.
- 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_69e0c4618bec8190bcb0feb74568cbb1 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69eeeb59cee08190aae55ad6e2a4e077 |
completed | April 27, 2026, 4:51 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a09f67679c881908cabb5b7f3e8dcb7 |
completed | May 17, 2026, 5:10 p.m. |
| NEDg | Description generation | batch_6a09f6e046e48190a65e3d164c14e4b3 |
completed | May 17, 2026, 5:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a09f7e525a88190a37680187b5b0916 |
completed | May 17, 2026, 5:16 p.m. |
Created at: April 16, 2026, 6:31 p.m.