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

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

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