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

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

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