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

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

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