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

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

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