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

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

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