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

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

*GRAMMAR*
dax -> RED 
 zup -> GREEN 
 fep -> PURPLE 
 gazzer -> BLUE 
 x1 kiki u1 -> [x1] [u1] 
 x1 wif x2 -> [x1] [x2] 
 x1 tufa u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 