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

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

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