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

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

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