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

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

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