Triple
T850753
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line E branch |
E18379
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object |
Heath Street
Heath Street is a light rail station in Boston, Massachusetts, serving as the southern terminus of the MBTA Green Line E branch.
|
E214615
|
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: Heath Street | Statement: [MBTA Green Line E branch, terminus, Heath Street]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heath Street Context triple: [MBTA Green Line E branch, terminus, Heath Street]
-
A.
Pine Street
Pine Street is a major east–west thoroughfare in Philadelphia known for its historic rowhouses and role as a key residential and cultural corridor in Center City.
-
B.
Pine Street
Pine Street is a major east–west thoroughfare running through San Francisco’s Financial District, lined with office towers, financial institutions, and historic buildings.
-
C.
Monroe Street
Monroe Street is a major east–west thoroughfare in downtown Chicago, Illinois, running through the city’s central business and cultural districts.
-
D.
Addison Street
Addison Street is a major east–west thoroughfare on Chicago’s North Side, running through neighborhoods such as Lakeview and passing near landmarks like Wrigley Field.
-
E.
Madison Street
Madison Street is a major east–west thoroughfare in downtown Chicago, Illinois, serving as a key dividing line for the city’s street numbering system.
- 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: Heath Street Triple: [MBTA Green Line E branch, terminus, Heath Street]
Generated description
Heath Street is a light rail station in Boston, Massachusetts, serving as the southern terminus of the MBTA Green Line E branch.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Heath Street Target entity description: Heath Street is a light rail station in Boston, Massachusetts, serving as the southern terminus of the MBTA Green Line E branch.
-
A.
Pine Street
Pine Street is a major east–west thoroughfare in Philadelphia known for its historic rowhouses and role as a key residential and cultural corridor in Center City.
-
B.
Pine Street
Pine Street is a major east–west thoroughfare running through San Francisco’s Financial District, lined with office towers, financial institutions, and historic buildings.
-
C.
Monroe Street
Monroe Street is a major east–west thoroughfare in downtown Chicago, Illinois, running through the city’s central business and cultural districts.
-
D.
Addison Street
Addison Street is a major east–west thoroughfare on Chicago’s North Side, running through neighborhoods such as Lakeview and passing near landmarks like Wrigley Field.
-
E.
Madison Street
Madison Street is a major east–west thoroughfare in downtown Chicago, Illinois, serving as a key dividing line for the city’s street numbering system.
- 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_69a4938b04208190b82e1df6b572c548 |
completed | March 1, 2026, 7:29 p.m. |
| NER | Named-entity recognition | batch_69a4ac215194819099e6bc1b5df58fb3 |
completed | March 1, 2026, 9:14 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69adf3a24d9c8190926a3946a89105e1 |
completed | March 8, 2026, 10:09 p.m. |
| NEDg | Description generation | batch_69adf431c3a88190971f61d53c2bad2e |
completed | March 8, 2026, 10:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69adf4bdb6dc8190964e5e78abfb8e40 |
completed | March 8, 2026, 10:14 p.m. |
Created at: March 1, 2026, 7:38 p.m.