# File automaten.rb, line 827
        def FirstSets
                firstString = String.new
                @grammar.getRules.each_value do |x| 
                        links = x.getSymbol
                        tmpMenge = Menge.new(x.getAlts)
                        tmpMenge.each do |i| 
                           i = i.to_s.split
                                firstString = firstString + links.to_s+" -> "+i.to_s+" "+FIRST(i,Menge.new([])).to_s + "\n"
                        end
                end
                return firstString
        end