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

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

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