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

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

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