*SUPPORT*
IN: gazzer blicket zup OUT: RED GREEN RED
IN: tufa blicket gazzer OUT: BLUE RED BLUE
IN: gazzer zup OUT: RED GREEN
IN: gazzer blicket gazzer OUT: RED RED RED
IN: lug fep OUT: YELLOW YELLOW
IN: zup dax OUT: GREEN GREEN
IN: zup lug dax OUT: GREEN YELLOW YELLOW
IN: zup blicket gazzer OUT: GREEN RED GREEN
IN: zup blicket lug OUT: GREEN YELLOW GREEN
IN: tufa fep OUT: BLUE BLUE
IN: zup gazzer fep OUT: GREEN RED RED
IN: zup blicket tufa OUT: GREEN BLUE GREEN
IN: gazzer fep OUT: RED RED
IN: gazzer dax OUT: RED RED

*QUERY*
IN: zup lug blicket zup OUT: GREEN YELLOW GREEN YELLOW
IN: lug dax OUT: YELLOW YELLOW
IN: lug blicket zup OUT: YELLOW GREEN YELLOW
IN: zup tufa tufa lug blicket lug OUT: GREEN BLUE BLUE YELLOW YELLOW YELLOW
IN: zup fep OUT: GREEN GREEN
IN: lug lug OUT: YELLOW YELLOW
IN: tufa zup tufa OUT: BLUE GREEN BLUE
IN: lug gazzer OUT: YELLOW RED
IN: tufa OUT: BLUE
IN: lug lug fep OUT: YELLOW YELLOW YELLOW

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