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

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

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