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

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

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