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

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

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