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

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

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