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

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

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