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

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

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