*SUPPORT*
IN: tufa tufa fep dax OUT: BLUE BLUE PURPLE
IN: dax tufa OUT: PURPLE BLUE
IN: tufa blicket OUT: BLUE BLUE
IN: zup fep zup OUT: GREEN GREEN
IN: kiki fep tufa OUT: YELLOW BLUE
IN: dax tufa blicket OUT: PURPLE BLUE BLUE
IN: zup fep tufa OUT: GREEN BLUE
IN: tufa fep zup OUT: BLUE GREEN
IN: dax OUT: PURPLE
IN: dax fep tufa OUT: PURPLE BLUE
IN: tufa fep kiki OUT: BLUE YELLOW
IN: kiki kiki fep kiki OUT: YELLOW YELLOW YELLOW
IN: dax fep zup OUT: PURPLE GREEN
IN: tufa zup blicket OUT: BLUE GREEN GREEN

*QUERY*
IN: dax zup zup blicket OUT: PURPLE GREEN GREEN GREEN
IN: dax fep kiki OUT: PURPLE YELLOW
IN: zup blicket OUT: GREEN GREEN
IN: dax blicket OUT: PURPLE PURPLE
IN: tufa lug OUT: BLUE BLUE
IN: dax lug OUT: PURPLE PURPLE
IN: kiki blicket OUT: YELLOW YELLOW
IN: zup tufa blicket OUT: GREEN BLUE BLUE
IN: kiki fep kiki OUT: YELLOW YELLOW
IN: zup zup fep dax OUT: GREEN GREEN PURPLE

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