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

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

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