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

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

*GRAMMAR*
zup -> YELLOW 
 wif -> BLUE 
 fep -> GREEN 
 lug -> RED 
 x1 dax -> [x1] [x1] 
 x1 blicket x2 -> [x2] [x1] 
 x1 tufa u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 