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

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

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