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

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

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