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

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

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