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

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

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