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

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

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