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

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

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