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

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

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