*SUPPORT*
IN: dax blicket fep blicket dax lug fep OUT: PINK PINK BLUE PINK PINK PINK BLUE
IN: tufa fep blicket dax OUT: GREEN BLUE PINK
IN: fep lug fep OUT: PINK PINK PINK PINK PINK
IN: fep lug kiki OUT: RED RED PINK RED RED
IN: fep kiki zup tufa OUT: PINK GREEN RED RED
IN: dax zup kiki OUT: RED BLUE BLUE
IN: tufa dax OUT: GREEN BLUE
IN: kiki zup fep OUT: PINK RED RED
IN: fep blicket tufa lug dax OUT: BLUE BLUE GREEN BLUE BLUE PINK
IN: tufa OUT: GREEN
IN: kiki fep dax zup tufa OUT: RED PINK GREEN BLUE BLUE
IN: kiki kiki dax OUT: RED RED BLUE
IN: kiki OUT: RED
IN: dax lug dax OUT: BLUE BLUE BLUE BLUE BLUE

*QUERY*
IN: dax zup fep OUT: PINK BLUE BLUE
IN: tufa zup dax OUT: BLUE GREEN GREEN
IN: tufa lug dax OUT: BLUE BLUE GREEN BLUE BLUE
IN: tufa blicket tufa blicket fep blicket tufa OUT: GREEN PINK GREEN GREEN
IN: fep dax lug fep OUT: PINK PINK PINK BLUE PINK PINK
IN: dax dax dax OUT: BLUE BLUE BLUE
IN: kiki lug fep OUT: PINK PINK RED PINK PINK
IN: kiki fep zup dax OUT: RED BLUE PINK PINK
IN: dax lug fep OUT: PINK PINK BLUE PINK PINK
IN: dax blicket fep OUT: PINK BLUE

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