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

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

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