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

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

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