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

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

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