*SUPPORT*
IN: dax zup dax OUT: RED PINK RED
IN: zup tufa dax OUT: RED PINK PINK
IN: dax fep zup OUT: RED PINK
IN: wif tufa zup OUT: PINK BLUE BLUE
IN: dax dax OUT: RED RED
IN: lug fep lug fep zup OUT: PURPLE PURPLE PINK
IN: zup OUT: PINK
IN: wif lug tufa zup blicket lug OUT: PURPLE BLUE PINK PURPLE PURPLE PURPLE
IN: dax tufa dax fep lug OUT: RED RED RED PURPLE
IN: zup zup tufa dax OUT: PINK RED PINK PINK
IN: wif tufa wif fep wif OUT: BLUE BLUE BLUE BLUE
IN: wif OUT: BLUE
IN: lug tufa lug fep lug OUT: PURPLE PURPLE PURPLE PURPLE
IN: lug tufa lug OUT: PURPLE PURPLE PURPLE

*QUERY*
IN: lug OUT: PURPLE
IN: lug tufa wif OUT: BLUE PURPLE PURPLE
IN: zup blicket lug tufa dax OUT: RED PURPLE PURPLE PINK RED PURPLE PURPLE
IN: lug wif tufa lug fep wif OUT: PURPLE PURPLE BLUE BLUE BLUE
IN: wif dax tufa zup blicket zup fep lug OUT: PINK PURPLE BLUE PINK RED RED PINK PURPLE
IN: dax OUT: RED
IN: wif fep zup OUT: BLUE PINK
IN: wif tufa lug OUT: PURPLE BLUE BLUE
IN: lug tufa zup OUT: PINK PURPLE PURPLE
IN: dax lug fep wif OUT: RED PURPLE BLUE

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