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

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

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