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

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

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