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

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

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