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

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

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