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

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

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