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

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

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