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

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

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