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

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

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