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

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

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