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

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

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