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

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

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