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

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

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