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

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

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