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

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

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