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

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

*GRAMMAR*
blicket -> BLUE 
 fep -> YELLOW 
 lug -> PINK 
 dax -> GREEN 
 u1 gazzer u2 -> [u2] [u2] [u1] [u2] 
 x1 tufa u1 -> [x1] [u1] 
 u1 kiki u2 -> [u1] [u2] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 