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

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

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