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

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

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