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

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

*GRAMMAR*
wif -> GREEN 
 tufa -> PURPLE 
 dax -> YELLOW 
 lug -> BLUE 
 u1 fep -> [u1] [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 x1 kiki -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 