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

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

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