Triple
T8102746
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Concourse Line |
E189152
|
entity |
| Predicate | openedAsPartOf |
P9951
|
FINISHED |
| Object | Independent Subway System expansion |
E35964
|
NE FINISHED |
How this triple was built (2 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: Independent Subway System expansion | Statement: [Concourse Line, openedAsPartOf, Independent Subway System expansion]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Independent Subway System expansion Context triple: [Concourse Line, openedAsPartOf, Independent Subway System expansion]
-
A.
7 Subway Extension
The 7 Subway Extension is a New York City transit project that extended the IRT Flushing Line (7 train) westward to serve the Hudson Yards redevelopment area on Manhattan’s Far West Side.
-
B.
Metropolitan Transit System
The Metropolitan Transit System is the primary public transportation agency serving the San Diego region, operating buses, trolleys, and related transit services.
-
C.
Independent Subway System (IND)
chosen
The Independent Subway System (IND) was New York City's municipally built and operated subway network, created in the early 20th century to compete with and eventually replace the privately run IRT and BMT lines.
-
D.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
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.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca82b886d88190a9cba0d5a4a27521 |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb42bd91408190880293dfdce8bef7 |
completed | March 31, 2026, 3:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cc642095a08190bcf90e6470e127cc |
completed | April 1, 2026, 12:17 a.m. |
Created at: March 30, 2026, 5:31 p.m.