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

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

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