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

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

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