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

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

*GRAMMAR*
dax -> BLUE 
 gazzer -> PINK 
 kiki -> GREEN 
 wif -> YELLOW 
 x1 zup u1 -> [u1] [x1] 
 u1 fep u2 -> [u1] [u2] 
 x1 lug x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 