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

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

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