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

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

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