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

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

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