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

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

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