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

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

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