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

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

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