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

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

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