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

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

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