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

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

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