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

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

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