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

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

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