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

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

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