*SUPPORT*
IN: lug dax fep zup blicket OUT: PURPLE GREEN BLUE
IN: kiki dax kiki OUT: RED RED
IN: kiki OUT: RED
IN: lug dax kiki OUT: GREEN RED
IN: fep tufa kiki OUT: RED RED BLUE
IN: fep fep dax lug OUT: BLUE BLUE GREEN
IN: lug OUT: GREEN
IN: fep dax kiki OUT: BLUE RED
IN: fep OUT: BLUE
IN: fep dax blicket OUT: BLUE PURPLE
IN: lug kiki dax lug zup kiki fep OUT: RED BLUE GREEN RED GREEN
IN: kiki blicket dax lug zup blicket tufa kiki OUT: RED RED PURPLE RED PURPLE GREEN
IN: lug tufa blicket OUT: PURPLE PURPLE GREEN
IN: lug tufa fep zup fep tufa kiki OUT: RED RED BLUE BLUE BLUE GREEN

*QUERY*
IN: fep tufa fep OUT: BLUE BLUE BLUE
IN: lug tufa kiki OUT: RED RED GREEN
IN: kiki dax lug OUT: RED GREEN
IN: blicket tufa fep OUT: BLUE BLUE PURPLE
IN: blicket OUT: PURPLE
IN: blicket tufa lug OUT: GREEN GREEN PURPLE
IN: fep kiki OUT: BLUE RED
IN: kiki lug OUT: RED GREEN
IN: lug dax fep OUT: GREEN BLUE
IN: lug dax lug OUT: GREEN GREEN

*GRAMMAR*
fep -> BLUE 
 blicket -> PURPLE 
 kiki -> RED 
 lug -> GREEN 
 u1 tufa u2 -> [u2] [u2] [u1] 
 x1 zup x2 -> [x2] [x1] 
 u1 dax u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 