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

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

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