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

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

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