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

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

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