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

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

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