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

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

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