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

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

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