*SUPPORT*
IN: blicket blicket OUT: BLUE BLUE
IN: dax OUT: RED
IN: blicket kiki blicket OUT: BLUE BLUE BLUE BLUE BLUE
IN: blicket lug fep OUT: BLUE BLUE BLUE BLUE
IN: gazzer dax kiki gazzer OUT: PURPLE PURPLE RED PURPLE RED PURPLE
IN: zup zup blicket OUT: GREEN GREEN BLUE
IN: gazzer dax gazzer fep OUT: PURPLE RED PURPLE PURPLE RED PURPLE
IN: zup OUT: GREEN
IN: gazzer OUT: PURPLE
IN: blicket kiki dax OUT: RED BLUE RED BLUE RED
IN: gazzer kiki gazzer OUT: PURPLE PURPLE PURPLE PURPLE PURPLE
IN: dax fep fep OUT: RED RED RED RED
IN: gazzer gazzer OUT: PURPLE PURPLE
IN: dax fep OUT: RED RED

*QUERY*
IN: zup kiki dax OUT: RED GREEN RED GREEN RED
IN: dax kiki dax OUT: RED RED RED RED RED
IN: zup kiki gazzer OUT: PURPLE GREEN PURPLE GREEN PURPLE
IN: zup blicket OUT: GREEN BLUE
IN: gazzer lug lug OUT: PURPLE PURPLE PURPLE PURPLE
IN: dax gazzer OUT: RED PURPLE
IN: blicket OUT: BLUE
IN: blicket kiki gazzer OUT: PURPLE BLUE PURPLE BLUE PURPLE
IN: gazzer kiki dax OUT: RED PURPLE RED PURPLE RED
IN: blicket lug fep lug OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE

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