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

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

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