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

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

*GRAMMAR*
zup -> BLUE 
 kiki -> GREEN 
 tufa -> RED 
 fep -> YELLOW 
 u1 wif u2 -> [u1] [u2] 
 x1 dax -> [x1] [x1] 
 u1 gazzer -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 