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

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

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