Triple
T6029444
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | A train (IND Eighth Avenue Line) |
E134262
|
entity |
| Predicate | depot |
P14646
|
FINISHED |
| Object |
Pitkin Yard
Pitkin Yard is a New York City Subway maintenance and storage facility serving trains on the IND Eighth Avenue Line in Brooklyn.
|
E562988
|
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: Pitkin Yard | Statement: [A train (IND Eighth Avenue Line), depot, Pitkin Yard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pitkin Yard Context triple: [A train (IND Eighth Avenue Line), depot, Pitkin Yard]
-
A.
Sunnyside Yard
Sunnyside Yard is a major rail yard in Queens, New York City, serving as a key hub for Amtrak, NJ Transit, and other commuter rail operations just east of Manhattan.
-
B.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
C.
Riverside Yard
Riverside Yard is a rail yard facility in Newton, Massachusetts, serving as a storage and maintenance area for trains on the MBTA Green Line’s D branch.
-
D.
Barstow Yard
Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
-
E.
Bailey Yard
Bailey Yard is the world’s largest railroad classification yard, located in North Platte, Nebraska, and serving as a major hub for freight train operations in the United States.
- 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: Pitkin Yard Triple: [A train (IND Eighth Avenue Line), depot, Pitkin Yard]
Generated description
Pitkin Yard is a New York City Subway maintenance and storage facility serving trains on the IND Eighth Avenue Line in Brooklyn.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pitkin Yard Target entity description: Pitkin Yard is a New York City Subway maintenance and storage facility serving trains on the IND Eighth Avenue Line in Brooklyn.
-
A.
Sunnyside Yard
Sunnyside Yard is a major rail yard in Queens, New York City, serving as a key hub for Amtrak, NJ Transit, and other commuter rail operations just east of Manhattan.
-
B.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
C.
Riverside Yard
Riverside Yard is a rail yard facility in Newton, Massachusetts, serving as a storage and maintenance area for trains on the MBTA Green Line’s D branch.
-
D.
Barstow Yard
Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
-
E.
Bailey Yard
Bailey Yard is the world’s largest railroad classification yard, located in North Platte, Nebraska, and serving as a major hub for freight train operations in the United States.
- 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_69c0087515148190a97475d412563865 |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c0560fdc84819093abba13054ea1ee |
completed | March 22, 2026, 8:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c11381aa0c81909487a5eb510c9b41 |
completed | March 23, 2026, 10:18 a.m. |
| NEDg | Description generation | batch_69c113de5d788190affa46cf416d180d |
completed | March 23, 2026, 10:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c1145180008190844d91782929349f |
completed | March 23, 2026, 10:22 a.m. |
Created at: March 22, 2026, 4:07 p.m.