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

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

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