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

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

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