TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : ISO 22000 is a standard developed by the International Organization for Standardization dealing with food safety. 
Question : Who set the standards for ISO 22000?

SOLUTION: International Organization for Standardization

PROBLEM: Context : Outwitting Trolls is a murder mystery written by William G. Tapply that takes place in Boston. 
Question : Which place does Outwitting Trolls exist in?

SOLUTION: Boston

PROBLEM: Context : Elementary OS (styled ``elementary OS'') is a Linux distribution based on Ubuntu. 
Question : Which is the basis of Elementary OS?

SOLUTION:
Ubuntu