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

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

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