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

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

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