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

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

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