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

*QUERY*
IN: wif dax wif OUT: YELLOW YELLOW
IN: zup zup lug OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: wif tufa blicket OUT: PINK YELLOW PINK
IN: wif OUT: YELLOW
IN: kiki OUT: GREEN
IN: wif blicket tufa kiki OUT: YELLOW GREEN PINK GREEN
IN: zup wif tufa blicket OUT: BLUE PINK YELLOW PINK
IN: zup kiki tufa zup OUT: BLUE BLUE GREEN BLUE
IN: zup tufa wif OUT: YELLOW BLUE YELLOW
IN: kiki lug OUT: GREEN GREEN GREEN GREEN

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