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

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

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