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

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

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