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

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

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