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

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

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