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

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

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