*SUPPORT*
IN: fep OUT: YELLOW
IN: fep wif dax blicket lug OUT: YELLOW RED RED PURPLE
IN: kiki gazzer dax OUT: RED GREEN
IN: lug gazzer kiki OUT: GREEN PURPLE
IN: lug kiki gazzer lug OUT: PURPLE PURPLE GREEN
IN: kiki blicket dax OUT: GREEN GREEN RED
IN: dax blicket dax OUT: RED RED RED
IN: fep gazzer fep OUT: YELLOW YELLOW
IN: dax wif lug gazzer fep OUT: RED YELLOW PURPLE
IN: dax kiki OUT: RED GREEN
IN: kiki blicket kiki OUT: GREEN GREEN GREEN
IN: kiki lug gazzer dax OUT: GREEN RED PURPLE
IN: dax lug gazzer kiki OUT: RED GREEN PURPLE
IN: lug fep OUT: PURPLE YELLOW

*QUERY*
IN: kiki wif lug dax OUT: GREEN PURPLE RED
IN: fep blicket fep OUT: YELLOW YELLOW YELLOW
IN: lug OUT: PURPLE
IN: fep gazzer lug OUT: PURPLE YELLOW
IN: fep wif lug wif fep OUT: YELLOW PURPLE YELLOW
IN: kiki wif kiki wif lug OUT: GREEN GREEN PURPLE
IN: fep fep gazzer lug OUT: YELLOW PURPLE YELLOW
IN: fep wif lug OUT: YELLOW PURPLE
IN: kiki wif fep gazzer dax OUT: GREEN RED YELLOW
IN: kiki wif dax gazzer lug OUT: GREEN PURPLE RED

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