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

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

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