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

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

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