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

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

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