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

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

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