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

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

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