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

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

*GRAMMAR*
gazzer -> BLUE 
 zup -> RED 
 kiki -> GREEN 
 tufa -> YELLOW 
 u1 fep x1 -> [u1] [x1] [x1] [u1] 
 x1 dax x2 -> [x1] [x1] [x2] 
 u1 lug u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 