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

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

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