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

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

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