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

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

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