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

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

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