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

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

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