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

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

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