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

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

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