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

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

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