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

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

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