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

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

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