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

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

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