Triple

T1290390
Position Surface form Disambiguated ID Type / Status
Subject Positive Train Control E27532 entity
Predicate regulatoryBasis P125 FINISHED
Object Rail Safety Improvement Act of 2008 E12215 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: Rail Safety Improvement Act of 2008 | Statement: [Positive Train Control, regulatoryBasis, Rail Safety Improvement Act of 2008]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rail Safety Improvement Act of 2008
Context triple: [Positive Train Control, regulatoryBasis, Rail Safety Improvement Act of 2008]
  • A. Rail Safety Improvement Act of 2008 chosen
    The Rail Safety Improvement Act of 2008 is a U.S. federal law that significantly overhauled rail safety regulations, including mandating positive train control systems and strengthening oversight to reduce accidents and improve railroad safety.
  • B. Passenger Rail Investment and Improvement Act of 2008
    The Passenger Rail Investment and Improvement Act of 2008 is a U.S. federal law that reauthorized and reformed Amtrak while establishing new funding, performance, and planning frameworks to improve intercity passenger rail service nationwide.
  • C. Amtrak Reform and Accountability Act of 1997
    The Amtrak Reform and Accountability Act of 1997 is a U.S. federal law that restructured Amtrak’s operations and finances, aiming to improve its efficiency and move it toward greater financial self-sufficiency.
  • D. Federal Railroad Safety Act
    The Federal Railroad Safety Act is a U.S. law that establishes nationwide standards and regulatory authority to promote and enforce the safety of railroad operations.
  • E. Fixing America’s Surface Transportation Act
    The Fixing America’s Surface Transportation (FAST) Act is a U.S. federal law enacted in 2015 that authorizes long-term funding and policy for the nation’s surface transportation infrastructure, including highways, transit, and safety programs.
  • 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_69a496d4ec448190ad653b2590c46711 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c0d6af908190ade9c481cc6f0ad8 completed March 1, 2026, 10:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69acacbf0cf48190937f620900b08d3f completed March 7, 2026, 10:54 p.m.
Created at: March 1, 2026, 7:51 p.m.