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

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

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