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

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

*GRAMMAR*
wif -> RED 
 lug -> GREEN 
 kiki -> BLUE 
 zup -> YELLOW 
 x1 fep x2 -> [x1] [x2] [x1] [x1] [x2] 
 u1 tufa u2 -> [u1] [u2] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 