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

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

*GRAMMAR*
gazzer -> PURPLE 
 dax -> RED 
 lug -> YELLOW 
 fep -> GREEN 
 u1 tufa u2 -> [u1] [u1] [u2] [u2] [u2] 
 u1 kiki u2 -> [u1] [u2] 
 x1 zup x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 