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

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

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