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

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

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