Triple
T1620059
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA bus route 57 |
E35009
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object |
Watertown Yard
Watertown Yard is a Massachusetts Bay Transportation Authority bus facility and former streetcar yard in Watertown, Massachusetts, serving as a key layover and terminal point for several bus routes.
|
E182350
|
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: Watertown Yard | Statement: [MBTA bus route 57, terminus, Watertown Yard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Watertown Yard Context triple: [MBTA bus route 57, terminus, Watertown Yard]
-
A.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
-
B.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
C.
Brunswick rail yard
Brunswick rail yard is a railway facility in Brunswick, Maine, used for storing, assembling, and servicing trains that operate through Brunswick station.
-
D.
Noyes station
Noyes station is an elevated Chicago Transit Authority 'L' station on the Purple Line serving the Evanston area north of Chicago.
-
E.
Camden Station
Camden Station is a historic Baltimore train station that now serves as a key commuter rail hub and gateway to the city’s downtown and sports stadiums.
- 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: Watertown Yard Triple: [MBTA bus route 57, terminus, Watertown Yard]
Generated description
Watertown Yard is a Massachusetts Bay Transportation Authority bus facility and former streetcar yard in Watertown, Massachusetts, serving as a key layover and terminal point for several bus routes.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Watertown Yard Target entity description: Watertown Yard is a Massachusetts Bay Transportation Authority bus facility and former streetcar yard in Watertown, Massachusetts, serving as a key layover and terminal point for several bus routes.
-
A.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
-
B.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
C.
Brunswick rail yard
Brunswick rail yard is a railway facility in Brunswick, Maine, used for storing, assembling, and servicing trains that operate through Brunswick station.
-
D.
Noyes station
Noyes station is an elevated Chicago Transit Authority 'L' station on the Purple Line serving the Evanston area north of Chicago.
-
E.
Camden Station
Camden Station is a historic Baltimore train station that now serves as a key commuter rail hub and gateway to the city’s downtown and sports stadiums.
- 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_69a886023194819080a3fccd6e325d0e |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69a909b0738c8190b073e0ccec5e217d |
completed | March 5, 2026, 4:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad51d2cbb481908bc74cecdc023547 |
completed | March 8, 2026, 10:39 a.m. |
| NEDg | Description generation | batch_69ad5277c64481909ffe991fd4579d0d |
completed | March 8, 2026, 10:41 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad52f8dda48190969a31b85b1d5134 |
completed | March 8, 2026, 10:44 a.m. |
Created at: March 4, 2026, 7:28 p.m.