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

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

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