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

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

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