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

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

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