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

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

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