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

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

*GRAMMAR*
zup -> PURPLE 
 dax -> RED 
 fep -> GREEN 
 kiki -> YELLOW 
 u1 tufa u2 -> [u2] [u2] [u1] 
 x1 lug u1 -> [x1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 