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

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

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