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

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

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