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

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

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