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

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

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