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

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

*GRAMMAR*
gazzer -> YELLOW 
 lug -> GREEN 
 tufa -> BLUE 
 zup -> RED 
 x1 fep -> [x1] [x1] 
 u1 kiki u2 -> [u1] [u2] 
 x1 dax x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 