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

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

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