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

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

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