desired/norm behaviour(s)



     a_1  = [ planet = green, profit = high ]
     a_2  = [ planet = green, people = happy ]
     a_3  = [ planet = red, profit = high ]
     a_4  = [ planet = red, people = happy ]
  

then we may, in an abstract fashion, deduce that if d( a_1, a_2 ) < d( a_1, a_3 ) then r(profit) < r(planet) , for a rating funtion r.