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

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

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