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

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

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