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

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

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