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

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

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