Triple
T164729
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad |
E2987
|
entity |
| Predicate | mergedInto |
P77
|
FINISHED |
| Object | Penn Central Transportation Company |
E9233
|
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: Penn Central Transportation Company | Statement: [Pennsylvania Railroad, mergedInto, Penn Central Transportation Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Penn Central Transportation Company Context triple: [Pennsylvania Railroad, mergedInto, Penn Central Transportation Company]
-
A.
Penn Central Transportation Company
chosen
Penn Central Transportation Company was a major American railroad formed in 1968 by the merger of the Pennsylvania Railroad and the New York Central Railroad, later becoming infamous for its massive bankruptcy.
-
B.
Interborough Rapid Transit Company
The Interborough Rapid Transit Company was the private operator that built and ran New York City's first subway lines in the early 20th century before they were incorporated into the modern NYC Subway system.
-
C.
Pennsylvania Railroad Company
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
-
D.
Metropolitan Transportation Authority
The Metropolitan Transportation Authority is the public agency responsible for operating and overseeing much of the mass transit and commuter rail systems in the New York City metropolitan area.
-
E.
Southeastern Pennsylvania Transportation Authority
The Southeastern Pennsylvania Transportation Authority (SEPTA) is the regional public transit agency serving the Philadelphia metropolitan area, operating buses, subways, trolleys, and commuter rail services across southeastern Pennsylvania.
- 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_69a2524ce1e48190ab066bf72859f474 |
completed | Feb. 28, 2026, 2:26 a.m. |
| NER | Named-entity recognition | batch_69a258827da481909b20ea5e9d21676f |
completed | Feb. 28, 2026, 2:52 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2d73560588190b7cb099b70b4e60d |
completed | Feb. 28, 2026, 11:53 a.m. |
Created at: Feb. 28, 2026, 2:34 a.m.