9050
Countries that ratify the convention will be obliged " never under any circumstances to " : ( a ) Use cluster munitions ; ( b ) Develop , produce , otherwise acquire , stockpile , retain or transfer to anyone , directly or indirectly , cluster munitions ; ( c ) Assist , encourage or induce anyone to engage in any activity prohibited to a State Party under this Convention .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None