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

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

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