Triple
T13354522
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | S (New York City Subway service) |
E318152
|
entity |
| Predicate | system |
P730
|
FINISHED |
| Object |
IND/BMT/IRT unified system
The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
|
E1034611
|
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: IND/BMT/IRT unified system | Statement: [S (New York City Subway service), system, IND/BMT/IRT unified system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IND/BMT/IRT unified system Context triple: [S (New York City Subway service), system, IND/BMT/IRT unified system]
-
A.
BMT
BMT (Brooklyn–Manhattan Transit Corporation) was a major private New York City subway operator whose lines now form one of the primary divisions of the modern NYC Subway system.
-
B.
BART distance-based fare system
The BART distance-based fare system is a pricing structure for the Bay Area Rapid Transit network in which riders are charged according to the length of their trip rather than a flat fare.
-
C.
IND system
The IND system is a major division of the New York City Subway, originally built as the city-owned Independent Subway System and now encompassing numerous lines and services across the network.
-
D.
CGS-EMU system
The CGS-EMU system is a variant of the centimeter–gram–second (CGS) system of units that uses the electromagnetic (EMU) subsystem for electrical and magnetic quantities, including the gauss as a unit of magnetic flux density.
-
E.
Dual System of Rapid Transit
The Dual System of Rapid Transit was an early 20th-century expansion and unification plan for New York City's subway network, implemented through joint contracts between the city and private transit companies.
- 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: IND/BMT/IRT unified system Triple: [S (New York City Subway service), system, IND/BMT/IRT unified system]
Generated description
The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IND/BMT/IRT unified system Target entity description: The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
-
A.
BMT
BMT (Brooklyn–Manhattan Transit Corporation) was a major private New York City subway operator whose lines now form one of the primary divisions of the modern NYC Subway system.
-
B.
BART distance-based fare system
The BART distance-based fare system is a pricing structure for the Bay Area Rapid Transit network in which riders are charged according to the length of their trip rather than a flat fare.
-
C.
IND system
The IND system is a major division of the New York City Subway, originally built as the city-owned Independent Subway System and now encompassing numerous lines and services across the network.
-
D.
CGS-EMU system
The CGS-EMU system is a variant of the centimeter–gram–second (CGS) system of units that uses the electromagnetic (EMU) subsystem for electrical and magnetic quantities, including the gauss as a unit of magnetic flux density.
-
E.
Dual System of Rapid Transit
The Dual System of Rapid Transit was an early 20th-century expansion and unification plan for New York City's subway network, implemented through joint contracts between the city and private transit companies.
- 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_69d806b5a3c08190b42c267fb092f98a |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d99f1ef94c81909a59b7c3f77d3335 |
completed | April 11, 2026, 1:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f71f4bdfdc819094d3945280ed8d30 |
completed | May 3, 2026, 10:11 a.m. |
| NEDg | Description generation | batch_69f72018c4848190941732e3a938278a |
completed | May 3, 2026, 10:14 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69f720bf04548190833af70061b017a1 |
completed | May 3, 2026, 10:17 a.m. |
Created at: April 9, 2026, 9:32 p.m.