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

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

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