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

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

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