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

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

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