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

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

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