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

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

*GRAMMAR*
zup -> BLUE 
 tufa -> GREEN 
 wif -> RED 
 dax -> YELLOW 
 u1 fep x1 -> [x1] [u1] 
 u1 lug -> [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 