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

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

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