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

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

*GRAMMAR*
tufa -> BLUE 
 zup -> PURPLE 
 gazzer -> RED 
 dax -> YELLOW 
 u1 lug x1 -> [u1] [x1] 
 x1 fep x2 -> [x2] [x1] 
 x1 blicket x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 