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

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

*GRAMMAR*
gazzer -> RED 
 tufa -> BLUE 
 fep -> YELLOW 
 wif -> PURPLE 
 u1 kiki u2 -> [u2] [u1] 
 x1 dax u1 -> [u1] [x1] [u1] [x1] [u1] 
 x1 zup x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 