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

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

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