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

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

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