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

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

*GRAMMAR*
fep -> GREEN 
 tufa -> RED 
 lug -> YELLOW 
 gazzer -> BLUE 
 u1 kiki u2 -> [u2] [u1] 
 x1 dax -> [x1] [x1] 
 x1 wif x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 