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

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

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