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

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

*GRAMMAR*
tufa -> YELLOW 
 zup -> BLUE 
 wif -> RED 
 dax -> PINK 
 u1 fep u2 -> [u1] [u2] [u1] 
 x1 kiki u1 -> [u1] [x1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 