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

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

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