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

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

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