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

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

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