*SUPPORT*
IN: kiki gazzer dax OUT: GREEN PINK
IN: lug tufa lug OUT: BLUE BLUE
IN: lug tufa fep OUT: BLUE RED
IN: lug dax gazzer dax OUT: BLUE GREEN GREEN
IN: fep gazzer kiki zup OUT: PINK RED PINK RED
IN: dax fep OUT: GREEN RED
IN: dax dax zup OUT: GREEN GREEN GREEN GREEN
IN: fep tufa dax OUT: RED GREEN
IN: kiki dax gazzer fep OUT: PINK RED GREEN
IN: dax OUT: GREEN
IN: lug tufa lug zup OUT: BLUE BLUE BLUE BLUE
IN: lug gazzer fep OUT: RED BLUE
IN: lug lug gazzer fep OUT: BLUE RED BLUE
IN: fep zup OUT: RED RED

*QUERY*
IN: dax tufa fep OUT: GREEN RED
IN: kiki fep dax gazzer dax zup OUT: PINK RED GREEN GREEN PINK RED GREEN GREEN
IN: dax fep tufa fep OUT: GREEN RED RED
IN: dax lug fep kiki tufa lug OUT: GREEN BLUE RED PINK BLUE
IN: fep lug OUT: RED BLUE
IN: fep OUT: RED
IN: kiki OUT: PINK
IN: fep lug tufa fep zup OUT: RED BLUE RED RED BLUE RED
IN: kiki fep gazzer lug OUT: PINK BLUE RED
IN: lug OUT: BLUE

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