Task: Sentence Expansion
Input (English): As High Commissioner , Guterres had more than 10,000 staff working in 126 countries providing protection and helping over 60 million refugees , returnees , internally displaced people and stateless persons .
Output (English): As High Commissioner , Guterres headed one of the world 's largest humanitarian organizations , one which at the end of his term had more than 10,000 staff working in 126 countries providing protection and assistance to over 60 million refugees , returnees , internally displaced people and stateless persons .