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

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

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