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

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

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