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

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

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