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

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

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