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

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

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