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

*QUERY*
IN: kiki OUT: GREEN
IN: dax blicket OUT: YELLOW BLUE
IN: blicket gazzer blicket OUT: BLUE BLUE
IN: blicket gazzer kiki OUT: GREEN BLUE
IN: dax gazzer dax OUT: YELLOW YELLOW
IN: blicket dax gazzer dax OUT: BLUE YELLOW YELLOW
IN: blicket gazzer kiki wif dax OUT: GREEN BLUE YELLOW YELLOW
IN: dax gazzer kiki OUT: GREEN YELLOW
IN: kiki wif kiki OUT: GREEN GREEN GREEN
IN: fep OUT: PURPLE

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