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

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

*GRAMMAR*
dax -> RED 
 gazzer -> BLUE 
 wif -> PINK 
 zup -> GREEN 
 x1 tufa u1 -> [u1] [x1] 
 u1 fep -> [u1] [u1] 
 u1 lug u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 