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

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

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