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

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

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