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

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

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