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

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

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