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

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

*GRAMMAR*
zup -> RED 
 tufa -> YELLOW 
 dax -> BLUE 
 fep -> PURPLE 
 x1 wif x2 -> [x1] [x2] [x1] [x2] 
 u1 blicket -> [u1] [u1] 
 u1 lug u2 -> [u1] [u2] [u2] 
 u1 x1 -> [u1] [x1] 
 