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

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

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