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

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

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