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

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

*GRAMMAR*
blicket -> YELLOW 
 dax -> GREEN 
 lug -> BLUE 
 fep -> PURPLE 
 x1 tufa x2 -> [x2] [x1] 
 u1 zup u2 -> [u1] [u2] 
 u1 gazzer x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 