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

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

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