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

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

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