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

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

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