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

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

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