TASK DEFINITION: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
PROBLEM: Context : ISO 3166-2:LV is the entry for Latvia in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Answer : International Organization for Standardization

SOLUTION: Who set the standards for ISO 3166-2:LV?

PROBLEM: Context : The 1957 Nutts Corner BEA Viscount crash was a British European Airways (BEA) flight from London to Belfast that crashed at Nutts Corner Airport on 23 October 1957, killing all seven passengers and crew.
Answer : 23 October 1957

SOLUTION: The date of 1957 Nutts Corner BEA Viscount crash?

PROBLEM: Context : Robbery Homicide Division (RHD) is an American police procedural television series on CBS, created by Barry Schindel with executive producer Michael Mann.
Answer : CBS

SOLUTION:
What network first aired Robbery Homicide Division?