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

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

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