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

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

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