*SUPPORT*
IN: fep gazzer lug gazzer fep tufa kiki OUT: PURPLE YELLOW PURPLE GREEN
IN: dax gazzer kiki OUT: RED GREEN
IN: kiki tufa kiki zup lug OUT: GREEN GREEN YELLOW YELLOW
IN: fep zup dax OUT: PURPLE RED RED
IN: fep gazzer fep fep tufa dax zup kiki OUT: PURPLE PURPLE PURPLE RED GREEN GREEN
IN: lug tufa kiki zup dax zup lug OUT: YELLOW GREEN RED RED YELLOW YELLOW
IN: fep tufa dax OUT: PURPLE RED
IN: dax gazzer kiki kiki zup dax OUT: RED GREEN GREEN RED RED
IN: lug fep tufa kiki zup fep OUT: YELLOW PURPLE GREEN PURPLE PURPLE
IN: kiki zup lug OUT: GREEN YELLOW YELLOW
IN: dax gazzer kiki zup dax OUT: RED GREEN RED RED
IN: lug gazzer kiki OUT: YELLOW GREEN
IN: kiki gazzer fep gazzer kiki lug fep OUT: GREEN PURPLE GREEN YELLOW PURPLE
IN: fep OUT: PURPLE

*QUERY*
IN: lug gazzer fep gazzer dax OUT: YELLOW PURPLE RED
IN: kiki tufa lug OUT: GREEN YELLOW
IN: kiki lug OUT: GREEN YELLOW
IN: dax tufa lug OUT: RED YELLOW
IN: fep gazzer kiki gazzer kiki dax tufa lug OUT: PURPLE GREEN GREEN RED YELLOW
IN: fep gazzer lug OUT: PURPLE YELLOW
IN: kiki OUT: GREEN
IN: dax kiki tufa fep zup dax OUT: RED GREEN PURPLE RED RED
IN: fep lug zup fep zup dax OUT: PURPLE YELLOW PURPLE PURPLE RED RED
IN: fep gazzer dax gazzer dax OUT: PURPLE RED RED

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