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

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

*GRAMMAR*
wif -> PURPLE 
 dax -> RED 
 tufa -> BLUE 
 lug -> PINK 
 x1 kiki x2 -> [x2] [x1] [x2] 
 u1 gazzer -> [u1] [u1] 
 u1 fep -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 