Task: Question Answering
Input (English): Context : The IUPAC/IUPAP Joint Working Party is a group convened periodically by the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP) to consider claims for discovery and naming of new chemical elements. 
Question : What is IUPAC/IUPAP Joint Working Party's parent company?
Output (English): International Union of Pure and Applied Chemistry