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

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

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