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

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

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