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

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

*GRAMMAR*
blicket -> PINK 
 wif -> GREEN 
 tufa -> PURPLE 
 gazzer -> BLUE 
 u1 kiki x1 -> [u1] [x1] [x1] 
 x1 fep x2 -> [x2] [x1] [x1] 
 u1 dax u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 