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

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

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