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

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

*GRAMMAR*
fep -> YELLOW 
 dax -> BLUE 
 tufa -> GREEN 
 wif -> PURPLE 
 u1 lug u2 -> [u2] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x2] [x1] [x1] 
 u1 blicket -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 