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

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

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