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

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

*GRAMMAR*
wif -> BLUE 
 zup -> GREEN 
 dax -> YELLOW 
 blicket -> PURPLE 
 u1 fep u2 -> [u2] [u1] 
 u1 lug x1 -> [x1] [u1] 
 u1 gazzer -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 