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

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

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