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

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

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