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

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

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