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

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

*GRAMMAR*
dax -> YELLOW 
 wif -> PURPLE 
 lug -> RED 
 kiki -> GREEN 
 x1 tufa x2 -> [x1] [x1] [x1] [x2] [x2] 
 x1 zup u1 -> [x1] [x1] [u1] [u1] 
 u1 gazzer u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 