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

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

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