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

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

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