private void fclTreeRuleBlockActivation(AST tree) {
String type = tree.getFirstChild().getText();
Gpr.debug(debug, "Parsing: " + type);
if( type.equalsIgnoreCase("MIN") ) ruleImplicationMethod = new RuleImplicationMethodMin();
else if( type.equalsIgnoreCase("PROD") ) ruleImplicationMethod = new RuleImplicationMethodProduct();
else throw new RuntimeException("Unknown (or unimplemented) 'ACT' method: " + type);
}