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

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

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