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

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

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