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

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

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