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

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

*GRAMMAR*
dax -> RED 
 fep -> GREEN 
 wif -> BLUE 
 kiki -> YELLOW 
 x1 blicket -> [x1] [x1] 
 u1 tufa u2 -> [u1] [u2] [u1] 
 x1 gazzer x2 -> [x2] [x2] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 