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

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

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