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

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

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