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

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

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