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

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

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