*SUPPORT*
IN: zup blicket lug OUT: PURPLE GREEN
IN: dax gazzer OUT: YELLOW YELLOW
IN: lug blicket dax OUT: GREEN YELLOW
IN: dax tufa zup gazzer OUT: PURPLE YELLOW PURPLE YELLOW
IN: dax blicket fep OUT: YELLOW BLUE
IN: fep lug dax lug OUT: BLUE GREEN YELLOW GREEN
IN: zup blicket lug gazzer OUT: PURPLE GREEN PURPLE GREEN
IN: zup fep zup gazzer OUT: PURPLE BLUE PURPLE PURPLE BLUE PURPLE
IN: lug lug gazzer OUT: GREEN GREEN GREEN GREEN
IN: zup gazzer OUT: PURPLE PURPLE
IN: dax blicket zup OUT: YELLOW PURPLE
IN: zup OUT: PURPLE
IN: zup blicket dax OUT: PURPLE YELLOW
IN: zup lug OUT: PURPLE GREEN

*QUERY*
IN: lug tufa zup OUT: PURPLE GREEN
IN: lug OUT: GREEN
IN: zup blicket fep OUT: PURPLE BLUE
IN: fep OUT: BLUE
IN: fep blicket fep OUT: BLUE BLUE
IN: fep gazzer OUT: BLUE BLUE
IN: dax OUT: YELLOW
IN: fep dax zup lug blicket zup OUT: BLUE YELLOW PURPLE GREEN PURPLE
IN: dax zup blicket dax OUT: YELLOW PURPLE YELLOW
IN: lug blicket fep OUT: GREEN BLUE

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