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

*QUERY*
IN: fep wif fep kiki OUT: BLUE BLUE BLUE
IN: tufa blicket kiki kiki OUT: PINK GREEN PINK GREEN PINK GREEN PINK GREEN
IN: fep kiki OUT: BLUE BLUE
IN: dax wif dax wif fep kiki kiki OUT: BLUE BLUE BLUE BLUE YELLOW YELLOW
IN: tufa kiki OUT: PINK PINK
IN: dax blicket blicket OUT: YELLOW GREEN GREEN
IN: blicket fep wif fep kiki OUT: GREEN BLUE BLUE GREEN BLUE BLUE
IN: dax OUT: YELLOW
IN: blicket fep kiki OUT: GREEN BLUE GREEN BLUE
IN: blicket tufa OUT: GREEN PINK

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