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

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

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