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

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

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