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

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

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