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

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

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