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

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

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