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

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

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