1019
South Africa ' s Supreme Court of Appeal ruled Tuesday against a state request to retry the head of apartheid ' s germ warfare program , once accused of plotting to poison Nelson Mandela .
 Supreme Court of Appeal: adjudicator; head: defendant
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: trial hearing 
  Option: prosecutor, adjudicator, defendant, place 
Text: {0} 
Answer:
 Supreme Court of Appeal: adjudicator; head: defendant