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

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

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