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

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

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