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

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

*GRAMMAR*
wif -> RED 
 kiki -> BLUE 
 dax -> YELLOW 
 fep -> GREEN 
 x1 zup -> [x1] [x1] 
 u1 blicket u2 -> [u2] [u1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 