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

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

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