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

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

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