*SUPPORT*
IN: zup zup OUT: RED RED
IN: wif lug tufa gazzer OUT: YELLOW BLUE BLUE YELLOW BLUE BLUE
IN: wif wif OUT: YELLOW YELLOW
IN: fep kiki OUT: GREEN GREEN GREEN GREEN
IN: zup kiki OUT: RED RED RED RED
IN: wif gazzer OUT: YELLOW YELLOW
IN: tufa kiki gazzer OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: zup fep OUT: RED GREEN
IN: fep OUT: GREEN
IN: zup lug fep lug fep lug zup OUT: RED GREEN GREEN GREEN GREEN RED RED
IN: fep wif gazzer gazzer OUT: GREEN YELLOW GREEN YELLOW GREEN YELLOW GREEN YELLOW
IN: zup kiki gazzer OUT: RED RED RED RED RED RED RED RED
IN: fep gazzer OUT: GREEN GREEN
IN: wif OUT: YELLOW

*QUERY*
IN: tufa fep gazzer OUT: BLUE GREEN BLUE GREEN
IN: tufa tufa tufa wif gazzer OUT: BLUE BLUE BLUE YELLOW BLUE BLUE BLUE YELLOW
IN: tufa kiki OUT: BLUE BLUE BLUE BLUE
IN: fep kiki lug zup OUT: GREEN GREEN GREEN GREEN RED RED
IN: tufa OUT: BLUE
IN: wif kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: zup tufa kiki OUT: RED BLUE BLUE BLUE BLUE
IN: tufa fep tufa kiki OUT: BLUE GREEN BLUE BLUE BLUE BLUE
IN: zup kiki lug tufa OUT: RED RED RED RED BLUE BLUE
IN: fep tufa OUT: GREEN BLUE

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