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

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

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