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

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

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