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

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

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