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

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

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