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

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

*GRAMMAR*
wif -> GREEN 
 kiki -> BLUE 
 tufa -> PURPLE 
 dax -> YELLOW 
 x1 blicket x2 -> [x1] [x2] [x2] [x2] 
 u1 fep u2 -> [u1] [u2] 
 u1 gazzer -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 