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

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

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