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

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

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