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

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

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