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

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

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